Sour, sharp, or biting to the taste; tart; having the taste of vinegar: as, acid fruits or liquors. Also fig.: Sour-tempered.
One of a class of compounds, generally but not always distinguished by their sour taste, solubility in water, and reddening of vegetable blue or violet colors. They are also characterized by the power of destroying the distinctive properties of alkalies or bases, combining with them to form salts, at the same time losing their own peculiar properties. They all contain hydrogen, united with a more negative element or radical, either alone, or more generally with oxygen, and take their names from this negative element or radical. Those which contain no oxygen are sometimes called hydracids in distinction from the others which are called oxygen acids or oxacids.
A sour chemical substance that releases hydrogen ions with the ability to dissolve metals, neutralize alkaline materials and to combine with bases to form salts. Acid is used to lower (decrease) pH and total alkalinity of swimming pool and spa water. Examples are muriatic acid (hydrochloric) and dry acid (sodium bisulfate). All liquids with a pH lower than 7.0 are acidic or acid.
a substance that causes a sour taste; can also dissolve certain minerals.
a liquid, usually corrosive with a pH lower than 7, opposite of an alkali
Any of a group of chemicals containing a free hydrogen element. Certain acids are used to clean minerals, and tests can be performed on some minerals with certain acids.
A way to describe a scent, always associated with citrus plants (limes, lemons, oranges, mandarin oranges).
a compound that yields H+ ions in solution or a solution in which the concentration of H+ exceeding OH-.
Any substance that in water solution tastes sour, changes the colour of certain indicators, promotes certain chemical reactions, etc. Examples of acids include inorganic substances such as sulfuric, nitric, and phosphoric acids, and organic compounds such as citric or maleic acid.
used to describe sharp biting flavor.
a sharp, refreshing quality in wine when balanced properly with fruit and alcohol.
An organic compound required for protein synthesis, broken down into essential amino acids (those NOT synthesized by humans) and non-essential amino acids (those synthesized by humans).
Corrosive liquid which facilitates chemical reaction
Acids occur naturally during the growing of grapes and as part of the fermentation process. In proper proportion, acids are a desirable trait and give the wine character. Too much acid leaves a sharp, tart taste in the mouth, while too little makes wine seem flat and lifeless.
any proton donor (H+); low pH, neutralize bases. Examples: HCl, vinegar, -COOH
A compound which has a pH less than 7. See pH.
Nothing to do with pH level. A sharp taste especially with Arabica coffee beans. There are 3 types: desirable, sour, and process acidity.
A substance that can donate protons (hydrogen ions) to a solution, thus raising the overall H+ concentration. Any solution with a pH below 7 is considered acidic, such as lemon juice and vinegar.
A large class of compounds which contain the element hydrogen (H+) in its formula which may be replaced by metallic salts. Of primary concern is the deleterious effect most acids may have on filter medium and housings.
acidus: sharp, sour] • A substance that can release a proton in solution. (Contrast with base.)
A sour substance. Reacts to a base to form a salt.
Chemicals that have a high concentration of hydrogen ions. Acids have a pH of less than 7 on a scale of 0 to 14. Strong acids, closer to 0 on the scale are corrosive, and weak acids, with a pH closer to 7, are not. An acid is the opposite of a base.
a chemical substance with a ph of less than 7.0 that causes paper fibers to break down and crumbleâ€¢ found in various supplies used to organize photographsâ€¢ causes photographs to deteriorate, discolour and become brittle
a substance that dissociates to form H+ ions when dissolved in water; has a pH less than 7.
See acid solution.
a compound that increases the number of hydrogen ions (H+) in solution with water All acids have a pH below 7
A characteristic of Arabica coffees, particularly varieties grown at high altitude. Some strains are sought for this particular quality and are called acidy coffees. An acidy coffee has a sharp pleasing taste as opposed to the sweet mellow flavour of non-acidy coffees. There is desirable acidity which is piquant and undesirable acidity which has a sour taste.
a solution (i.e. water) with a pH less than 7.0.
In the Brønsted definition, an acid is a chemical species that can donate a proton to another species (a base). In the Lewis definition, an acid is a chemical species that can accept (and share) a pair of electrons from another species. Hydrochloric acid is a Brønsted acid; the proton it donates is a Lewis acid. A neutral Lewis acid and a neutral Lewis base can commonly form a dipolar bond.
A substance which releases hydrogen ions when it is added to water. The hydrogen ion is solvated ie. a water molecule adds on to it, to give the oxonium ion.
A substance that donates protons (H+ ions) to water (forming H3O+) or to another acceptor. An acid can also be considered as a compound that dissociates to produce H+ and its conjugate base.
substance that in water solution tastes sour; reacts with base to form a salt
a substance that produces hydrogen ions in solution
Soil or compost with a pH level of less than 7.
a solution that has a pH value lower than 7
compound that yields hydrogen ions (H+) when in aqueous solution. Acids have a sour taste and turn blue litmus red.
An inorganic or organic compound that 1) reacts with metals to yield hydrogen; 2) reacts with a base to form a salt; 3) dissociates in water to yield hydrogen ions; 4) has a pH of less than 7.0; 5) neutralizes bases or alkalis; and 6) turns litmus paper red.
a class of sour tasting substances used by meadmakers to balance the sweetness of the honey. Can be derived from natural sources, such as citrus fruits, or from a powdered concentrate that typically contains a combination of citric, mallic, and tartaric acids. In evaluation of wine and mead, acid refers to a sour, green taste that stimulates salivaâ€”the mouth waters.
Food, usually liquids or juices or wines that have a sour or sharp flavor and having a pH of less than 7.
A water substance with pH less than 7 that reacts with and neutralizes an alkali.
A sour-tasting substance which dissolves in water to produce hydrogen ions and a pH less than 7.
a proton donor An Acute Hazard is one to which a single exposure may cause harm, but which is unlikely to lead to permanent damage.
A chemical substance that has a pH of less than 7.0. Acids can react with photographs, paper memorabilia, metals, and scrapbook products shortening their life span, causing corrosion, discoloration, brittleness or a variety of other problems.
An organic or inorganic substance that contains hydrogen that disassociates when put into solution with water producing one or more hydrogen ions.
A Chemical compound which releases hydrogen ions, when dissolved in water
a chemical that is used to lower the pH and/or total alkalinity. Most commonly used are liquid muriatic acid (hydrochloric acid) or granular pH decreaser (sodium bisulfate).
pH below 7 on scale of O to 14; normal product of decomposition characterized by hydrogen ions.
A description used for cheese with sour flavors.
A Chemical compound which releases hydrogen ions into water, decreasing pH. Products like muriatic acid or Sodium Bisulfate (Lo n Slo) are used to lower pH and total Alkalinity in pool water.
Having a pH of less than 7 (neutral). Water treatment
A compound capable of donating a hydrogen ion (H+) to another compound.
A compound is considered acidic when its pH is below 7. An example would be lemon juice or vinegar.
(1) A substance that tends to lose an electron. (2) A substance that dissolves in water with the formation of hydrogen ions. (3) A substance containing hydrogen which may be replaced by metals to form salts. (4) A substance that is corrosive.
A chemical that lowers pH and total alkalinity when dissolved in water by providing hydrogen ions. Hydrochloric Acid and Sodium Bisulfate are two commonly used acids.
It is a water soluble sour tasting chemical compound. An acid has pH less than 7. The molecule contains hydrogen and are sour tasting compounds and their generic formula is AH.
any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"
containing acid; "an acid taste"
a caustic erosive sour substance that has an electropositive charge
a chemical compound that reacts with metals to form salts by releasing hydrogen
a chemical substance that has hydrogen in it and that neutralizes alkalis
a chemical substance that reacts with other substances
a chemical that ionize in aqueous solutions to form hydrogen ions
a compound of hydrogen which will attack some metals and liberate hydrogen when magnesium is dissolved in it
a compound that produces hydrogen ions when dissolved in water
a compound which, when dissolved in water, produces positive ions (atoms with an electric charge) of hydrogen
a molecule or ion (an ion is an atom that carries a positive or negative electric charge) that can contribute a hydrogen ion to a solution
a molecule or ion that can accept a pair of electrons while a base is a molecule or ion that can donate a pair of electrons
a molecule that releases protons (hydrogen ions) in solution
an electron pair acceptor
a proton donor and a base is a proton acceptor
a proton spitter outer
a substance composed of H and a negative element or radical
a substance from which a proton can be removed
a substance than can accept the sharing of two electrons, whereas a base is a substance than can give up, to share, a pair of electrons
a substance that contains ionizable hydrogen ions
a substance that dissolves in water, producing a solution rich in hydrogen ions
a substance that releases hydrogen into a solution and an alkali or base is one that removes hydrogen from a solution
a substance that with certain other substance forms salts, sharp or sour to the taste
a substance which can donate a hydrogen ion or freely dissociate a hydrogen ion
a substance which dissociates to produce hydrogen ions in solution
a substance which has a tendency to donate a proton to any other substance and base is a substance which has a tendency to accept a proton from any other substance
a substance with a sour taste that is characterized chemically by the ability to react with a base to form a salt
a water-soluble, sour-tasting chemical compound that when dissolved in water, gives a solution with a pH of less than
A substance that produces hydrogen ions when dissolved in water. Acids have a pH of less than 7.0. Acid is produced in paper when the paper and papermaking chemicals in the paper deteriorate, or when acid is absorbed from its environment. Over time, acid breaks the paper fibers down, causing the paper to deteriorate and become brown and brittle.
A compound containing hydrogen which can compound with a base to form salts
Any chemical with a low pH that in water solution can burn the skin or eyes. Acids turn litmus paper red and have pH values of 0 to 6.
Compound that contains hydrogen, being able to free it in an aqueous solution. These aqueous solution always presents a pH lower than 7. The strength of an acid depends on the easiness that the hydrogen ion is solvated.
Compound that gives off H+ ions in solution.
an acid is a chemical that lowers the pH of a solution. Acids interact with other chemicals by donating hydrogen atoms or accepting electrons.
a type of compound that, when dissolved in water, produces a solution with a pH lower than 7.
A substance which dissolves in water or certain other solvents, and releases hydrogen ions. For example, hydrogen chloride in solution is an acid, also referred to as hydrochloric acid or muriatic acid. (See pH .)
Water that contains substances that lower the pH value below 7.0 (neutral).
Sour-tasting compound containing hydrogen that may be ionized or replaced by positive elements to form salts.
a water-soluble substance with sour taste.
Any substance with a pH lower than 7.
Any substance that has a pH level below 7, or that has more free hydrogen ions (H+) than hydroxide ions (OH-).
Any substance capable of donating a hydrogen atom or a proton (H+) to another substance.
Corrosive solution formed by the combination of hydrogen and oxygen atoms with metal or metallic radicals. Acidic solutions may be neutralized with a base or alkaline solution.
a sour solution with a pH of less than 7.
A corrosive compound with the following characteristics: Reacts with metals to yield hydrogen; reacts with bases to form salts; dissociates in water to yield hydrogen ions; has a pH 7.0 and neutralizes bases or alkalies.
a classification of substances that liberate hydrogen ions in water, and are normally sour and corrosive, with a pH lower than 7. A compound or atom that donates protons.
A solution that has a pH less than 7, also a solution having this pH value
Acid is a substance capable of forming hydrogen ions when dissolved in water. It can weaken cellulose in paper, board, and cloth, leading to discolouration and embrittlement. Acids may also be introduced by migration from other materials or from atmospheric pollution. See also pH and ACID MIGRATION.
A substance that when dissolved in water dissociates and can donate a hydrogen ( proton) to another molecule. Examples include sulphuric acid and nitric acid. Under these conditions nitric acid dissociates according to the following equation: In water the protons attach themselves to the water molecules, giving the following equation
Compound producing hydrogen ions in aqueous solution. Acidic refers to that which has a pH below 7.0. The pH of hair and skin is normally between 4.4 and 5.6, is acidic.
A substance which dissolves in water and releases hydrogen ions (H +). Acids cause irritation, bums, or more serious damage to tissue, depending on the strength of the acid, which is measured by pH (see pH).
a solution whose pH is less than 7.
There are four major acids found in wine: tartaric, malic, lactic and citric. Acid is identifiable by the crisp, fresh character it imparts to a wine's palate. Too much can lead to a sharp, sour taste; too little can leave a wine 'flabby' and out of balance.
Acid soil is soil with a pH of less than 7. Weeds commonly found on acid soil include: Dock, thistle, daisy, plantain, creeping buttercup, heather, rhododendron, azalea and camellia.
A pH reading lower than 7.0
A substance having a pH less than l.0. Liquids are sour and corrosive.
A chemical substance with a pH less than 7 on a scale of 0-14. Acids can neutralize bases, and strong acids are corrosive.
a substance with a quantity of positively charged hydrogen ions.
A compound, either inorganic or organic, that (1) reacts with a metal to evolve hydrogen; (2) reacts with a base to form a salt; (3) dissociates in water solution to yield hydrogen (or hydronium) ions; (4) has a pH of less than seven (7); and (5) neutralizes bases or alkaline media by receiving a pair of electrons from the base so that a covalent bond is formed between the acid and the base.
ass-id A substance that turns litmus red. Has a pH of less than 7.
A molecule that releases hydrogen ions into water. 40
In chemistry, a substance that may have a sour taste, makes blue litmus paper turn red, and can react with a base to make salt.
Substances that contain one or more hydrogen atoms in their molecular structures. Acids have a pH that ranges from 0-6, and react with bases to form a salt.
A substance that dissolves in water with the formation of hydrogen ions and reacts with a base to form a salt and water. It neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive and sour-tasting liquid.
Chemicals such as sodium bisulfate ( SoftDown ) or muriatic acid used to lower pH or alkalinity.
A chemical compound which dissolves in water. Acids have sour taste and turn a vegetable dye called litmus, red. An acid separates into two or more electrically charged parts when it is dissolved in water.
a substance that releases H+ ions in solution in water (Arrhenius).
Compare? A corrosive solution with a pH less than 7. Vinegar is a common weak acid; battery acid is much stronger.
An ingredient that neutralizes or adjusts the alkalinity of other ingredients. Some specialty cleaners need extra acidity to remove mineral build-up.
A sour chemical substance containing hydrogen with the ability to dissolve metals, neutralize alkaline materials and combine with bases to form salts. Acid is used to lower (decrease) pH and total alkalinity of swimming pool and spa water. Examples are muriatic acid (hydrochloric) and dry acid (sodium bisulfate). ACID DEMAND The amount of acid required to bring high pH and total alkalinity down to their proper levels. Determined by the acid demand test.
This is a solution having a pH of less than seven.
A compound that can donate a proton (H+). The carboxyl and phosphate groups are the primary acidic groups in biological molecules.
A chemical substance that yields hydrogen ions when dissolved in water. Lowers the pH.
A class of chemical compounds commonly used in printmaking and glass etching to eat away unprotected areas of the surface to create a design.
A substance that increases the concentration of hydrogen ions when dissolved in water. Most acids dissolve common metals and will react with a base to form a salt.
A substance having a sour or sharp flavor. Most foods are somewhat acidic. Foods generally referred to as acidic include citrus juice, vinegar, and wine. Degree of acidity is measured on the pH scale; acids have a pH of less than 7.
A compound that produces hydrogen ions in water solution.
a chemical that has a sour taste when aqueous, changes the color of acid-base indicators, reacts with bases to form salts and water, and conducts electric current. Arrhenius acids are chemical compounds that increase the concentrations of positive hydrogen ions in aqueous solution. Brønsted-Lowry acids are molecules or ions that are proton donors. A Lewis acid is an atom, ion or molecule that accepts an electron pair to form a covalent bond.
A chemical substance that yields hydrogen ions (H+) when dissolved in water. Compare with base..
a sour substance: An acidic solution has a pH below 7
having more hydrogen ions than hydroxyl ions; a pH of less than 7.
Any of various typically water-soluble and sour compounds that in solution are capable of reacting with a base to form a salt, redden litmus, and have a pH less than 7.
Refers to a material (soil, potting mixture, water, etc.) with a pH level below 7.0. Acidity is an indication of the absence of lime or other alkaline material. See also neutral and pH.
a substance is an acid or is acidic if it has pH less than 7. Acidic substances turn universal indicator red, orange or yellow.
A substance that increases the number of hydrogen ions in a solution.
(Arrhenius definition) any substance that, when dissolved in water, increases the concentration of hydronium ion, H30' (hydrogen ion, H'). (Bronsted-Lowry definition) the species (molecule or ion) that donates a proton to another species in a proton-transfer reaction.
a) Any of a large class of substances whose aqueous solutions are capable of turning litmus indicators red, of reacting with and dissolving certain metals to form salts, of reacting with bases or alkalis to form salts, or having a sour taste. b) A substance that ionizes in solution to give the positive ion of the solvent. c) A substance capable of giving up a proton. d) A molecule or ion that can combine with another by forming a covalent bond with two electrons of the other.
A sour chemical containing hydrogen able to dissolve metals, neutralize alkaline materials and combine with bases to form salts. Acid is used to lower pH and total alkalinity of spa/pool water. (muriatic or hydrochloric acid, dry acid or sodium bisulfate.
A material with pH of less than 7.0
A chemical compound, usually a liquid that is capable of transferring a hydrogen ion in solution. Any substance with a pH value of less than 7.
A chemical which has the ability to neutralise an alkali to form a salt. Certain acids react vigorously with metals, releasing hydrogen gas. Acids may also be corrosive to the skin, eyes and mucous membranes, especially in concentrated form. Acid turns blue litmus paper red. Sulphuric, hydrochloric and nitric acid are common examples
The opposite of alkalies; materials with a pH below pH 7. Useful for dissolving calcium scale such as milkstone. Examples of liquid acids are muriatic, sulfuric, phosphoric; powdered acids are oxalic, sulfamic, citric, etc.; and the measure of how much hydrogen (in excess of hydroxide} is pH.
chemical substance with a pH value below 7.
A molecule that can contributes a proton (H+) to a solution.
A sour substance, one which liberates hydrogen ions in water and is sour and corrosive; will turn litmus red and has a pH of less than 7; acids are generally divided into two classes. (1) strong mineral or inorganic acids such as sulfamic, sulfuric, phosphoric, hydrochloric, or nitric, (2) weak organic or natural acids such as acetic (vinegar), citric (citrus fruit juices), oxalic, and fatty acids (oleic) such as palmitic and stearic.
Opposite to alkali, which neutralize and are neutralized by alkalis. Examples of household acids are vinegar and lemon juice.!-- google_ad_client = "pub-8039990704443990"; google_ad_width = 468; google_ad_height = 60; google_ad_format = "468x60_as"; google_ad_type = "text_image"; google_ad_channel ="6807473505"; google_color_border = "FFFFFF"; google_color_bg = "FFFFFF"; google_color_link = "0000FF"; google_color_text = "000000"; google_color_url = "FF3300";
A substance that has the ability to react with bases to form salt. The pH of an acidic solution is less than 7. pH 7 is neutral (e.g., pure water). Acids are pH 0 to less than 7. Similarly, bases are greater than 7 to 14. The usual definition of an acid is "any substance that can donate a hydrogen ion".
A substance that, when dissolved in water, forms a solution with a pH of less than seven.
A chemical used to lower pH of pool or spa water. Available in liquid (muriatic acid) and gradual (dry acid) forms.
A hydrogen-containing corrosive material that reacts with water to produce hydrogen ions; a proton donor. Any of a class of chemical compounds whose aqueous solutions turn litmus paper red (have a pH less than 7) or reacts with and dissolves certain metals or reacts with bases to form salts. A compound capable of transferring a hydrogen ion in solution. A molecule or ion that combines with another molecule or ion by forming a covalent bond with two electrons from the other species.
pH - acidity or alkalinity ranging from 3 (strongly acid) to 11 (strongly alkaline) with 7 being neutral. .
1) A substance with a sour taste. 2) A substance that yields hydrogen ions when dissolved in water (compare with base). 3) A compound containing a carboxyl group (-COOH). Alcohol - A compound containing a hydroxyl group (-OH). R-OH
([Lat. acidus, sour]) Compare with base. a compound which releases hydrogen ions (H+) in solution (Arrhenius). a compound containing detachable hydrogen ions (Bronsted-Lowry). a compound that can accept a pair of electrons from a base (Lewis)..
a chemical substance. An acid has a pH value less than 7 and turns litmus paper to a red colour
Any substance that donates a proton (H+) when dissolved in a solution. In water treatment, it usually means circulating water with a pH of less than 7.0. Sulfuric acid is the most common acid used to control cooing water pH.
combination reaction formula weight kinetic molecular theory paramagnetic substance subshell
A substance which dissolved in water produces a sharp, sour solution; capable of providing hydrogen ions (H+); common examples are lemon juice, vinegar and battery acid.
A type of compound that contains hydrogen and dissociates in water to produce positive hydrogen ions ( H+ ) . Acids are classed by Lowry-Bronsted as proton donors. Solutions such as Hydrochoric Acid are used in the oilfield to dissolve carbonate scales.
Any chemical that undergoes dissociation in water with the formation of hydrogen ions. Acids have a sour taste and may cause severe skin burns. Acids turn litmus paper red and have pH values of 0 to 6.
Stuff that makes wine taste sharp. Also contributes to the boquet (q.v.) and brilliance. Can have too much or too little.
A corrosive chemical with a pH value less than 7.
a solution that has an excess of hydrogen ions (H+)
Substance that produces hydrogen ions when dissolved in water. Acids have a pH of less than 7.0. Close Window
Refers to medium or nutrient solution with a low pH; an acidic solution has a pH below 7.
An acid is a proton donor. It turns litmus red.
A compound that ionizes in water to produce hydrogen ions. It readily donates protons to other substances and, when dissolved in water, creates solutions that conduct electricity, taste sour and turns litmus paper red. Inorganic acids (sometimes called mineral acids) include sulfuric, nitric, hydrochloric and phosphoric. Organic acids include acetic, oxalic, hydroxyacetic and citric. Acids are used in toilet bowl cleaners, rust removers and hard water stain removers.
A tart substance that is in all wine, between .5% and 1%.
a liquid or dry compound used to reduce the pH of swimming pool or spa water. See also "muriatic acid" and "sodium bisulfate".
A water soluble substance with pH less that 7 that reacts with and neutralizes and alkali.
In a restricted sense, any substance containing hydrogen in combination with a nonmetal or nonmetallic radical and capable of producing hydrogen ions in solution.
An organic or inorganic compound with a pH of less than 7. Acidic materials are corrosive to human tissue.
Anything with a pH lower than 7 is acid-above 7 is alkaline. Water has a pH of 7. Skin has an average pH of 5.5.
Any substance, which when dissolved in water, yields a pH below 7.
Liquid ( muriatic acid) or dry granular ( sodium bisulfate) substance used to lower the pool's pH (toward a more acidic condition) or to lower total alkalinity levels.
A substance that dissolves in water and releases hydrogen ions (H+). Acids cause irritation, burns or more serious damage to tissue, depending on the strength or concentration. Acids have a pH less than 7.
any chemical compound, one element of which is hydrogen, that dissociates in solution to produce free hydrogen ions.
Any substance that can donate a hydrogen atom or proton (H+) to any other substances. Examples are vinegar and hydrochloro acid.
A water-soluble chemical compound that tastes sour or bitter, irritates skin and eyes, and reddens litmus paper.
Used to describe a slightly sour flavour.
One of the four tastes of wine. It is sometimes described as sour, acidic, or tart and can be found on the sides of the tongue and mouth.
In our context, a substance having a pH below that of neutral water (7.0) when in solution. Most metabolic waste products are acidic. Sour.
A chemical substance that makes paper to become brittle and fall apart.
In chemistry, a substance capable of forming hydrogen (H+) ions when dissolved in water. Acids can damage cellulose in paper, board and cloth, by weakening or breaking their molecular bonds leading to embrittlement. Acids may be introduced during the manufacture of library materials, or may be present in the raw material. Acids may also be introduced by migration or from atmospheric pollution. They can be neutralised by an alkali to form a salt
a substance that provides H+ ions in water
Term used to describe a tart or sour taste in the mouth when total acidity of the wine is high.
Chemical substance rated below 7 on the PH scale
A descriptive term for cheese with a pleasant tang and sour flavor due to a concentration of acid. By contrast, a cheese with sharp or biting, sour taste indicates an excessive concentration of acid which is a defect.
A chemical substance whose properties include the ability to react with bases or alkalies in water solutions to form salts.
The sharp, tart effect of the green fruit of young wine on both the nose and tongue.
a sour substance found in Vitamin C and in many fruits and vegetables
A compound that produces hydrogen ions (H+) in aqueous solution. The concentration of hydrogen ions in water is known as acidity. See also Acidity.
a substance that has a pH of less than 7, which is neutral. Specifically, an acid has more free hydrogen ions (H+) than hydroxyl ions (OH-).
an agent able to produce positively charged hydrogen ions (H+). [Since the hydrogen ion is a bare proton, it usually exists in a solvated form (such as H3O+).
Substance that can weaken cellulose in paper causing it to become brittle.
A substance containing hydrogen ions (H+) which can be replaced by a base to form a salt and water only.
Any class of compounds that share certain basic chemical characteristics. Acids have low pH, are usually sour to the taste, and in their organic form, are often corrosive. Found in plant tissues (especially fruits) tend to prevent the secretion of fluids and shrink tissues.
Chemical which lowers pH.
A substance that produces hydrogen ions (H+) in aqueous solutions. An acid will destroy human tissue on contact. The pH values of acids are between 0 and 6. Strong acids have a lower pH and are more corrosive than weak acids. Examples of strong acids include hydrochloric acid, nitric acid, and phosphoric acid. See also pH, Bases, Corrosive.
Generally, a substance that reacts with bases to form a salt, several different definitions of acids have been proposed by different scientists (listed in parentheses). 1) (Arrhenius) a compound that releases hydrogen ions (H+) in solution; 2) (Brønsted-Lowry) a compound capable of donating hydrogen ions, 3) (Lewis) a compound that can accept a pair of electrons from a base.
corrosive substances with a pH of less than 7.0; acidity is caused by high concentrations of hydrogen ions.
A sour substance: An acid or sour soil or solution has a low pH.
A hydrogen containing compound which itself or its solution has an acidic pH ( 7.0) and which can react with a base to form a salt.
Pertains to the pH level of a substance. If the pH is below 7, the substance is acid in nature. Acids are used in skin care products to stabilize formulas which otherwise would have an unwanted alkaline level
A solution or liquid with a pH less than 7. A term applied to slags, refractors, and minerals containing a high percentage of silica. A chemical term to define a material, which gives an acid reaction. See pH, Slag.
A chemical substance containing hydrogen with the ability to neutralise alkaline materials. Acid is used to lower the pH or total alkalinity of swimming pool water. Most common are hydrochloric acid (muriatic) and dry acid (sodium bisulfate).
A compound consisting of hydrogen plus one or more other elements and which, in the presence of some solvents or water, react to release hydrogen. Acids can be used to neutralize bases.
A compound whose dissociation in solution releases a hydrogen ion and an anion; an acidic solution has a pH below 7.0 and contains an excess of hydrogen ions.
Chemical compound that, when dissolved in water, releases hydrogen ions (H+).
a sour tasting, corrosive substance - the opposite of a base substance. Acidic solutions will turn a litmus red.
One of the four tastes of wine; a sour or tart sensation on the sides of the tongue and mouth.
A chemical which neutralizes alkalis forming salts. Acids have low pH's.
Any solution where there are more hydrogen ions present than hydroxide ions, such a solution will have a pH less than 7.
Aqueous solutions with pH less than 7 (Scale 1/14) Not recommended in Better Engineering machinery.
Donator of hydrogen ions (H+).
any compound that can react with a base to form a salt
food can be sharp, tart, sour, bitter. Just the opposite of sweet, sugary, honey.
A substance which releases hydrogen ions when dissolved in water. Most acids will dissolve the common metals and will react with a base to form a neutral salt and water.
a substance with a low pH
a compound that releases hydrogen ions when dissociated in solution.
substance that ionizes in water to produce H+ Ions. Acid solutions have H+ concentrations 1x10-7 (pH 7). See also alkali or base.
Generally means a pH of less than 7. Acid mine water has a pH of 3.5 to 6.0 as a rule. Waters with a pH of less than approximately 5.0 are not suitable for most fish and other aquatic organisms.
a substance that produces hydrogen ions when dissolved in water. Acids have a pH of less than 7.0. Acid is produced in paper when the paper and paper-making chemicals in that paper deteriorate, or when acid absorbed from its environment. This acid breaks paper fibers down and causes the paper to deteriorate and become brown and brittle.
Sour tasting compound that can chemically neutralize bases. Muriatic acid is commonly added to swimming pools to inhibit algae growth and to keep the water PH-balanced.
An acid (often represented by the generic formula HA) is traditionally considered any chemical compound that, when dissolved in water, gives a solution with a p H less than 7.0. That approximates the modern definition of BrÃ¸nsted and Lowry, who defined an acid as a compound which donates a hydrogen ion (H+) to another compound (called a base). Common examples include acetic acid (in vinegar) and sulfuric acid (used in car batteries).