Degree of acid found in a given paper measured by the pH factor. pH is measured from 0-14. From 0-6 is considered acid, 7 representing neutral, from 8-14 alkaline.
The quality, state or degree of being acid. In lubricating oils, acidity denotes the presence of constituents whose concentration is usually defined in terms of a neutralisation number. The constituents vary in nature and may or may not markedly influence the behaviour of the fluid.
The level of hydrogen ion concentration in a solution. Acidity is measured on the pH scale. The pH scale is a logarithmic scale. The majority of readings go from 1 (very high acidity) to 14 (very high alkalinity).
The quantitative capacity of aqueous solutions to react with alkalis.
The presence of acid-type constituents whose concentration is usually defined in terms of neutralization number. The constituents vary in nature and may or may not markedly influence the behavior of the oil. (see neutralization number)
The quantitative capacity of water or a water solution to neutralize an alkali or base. It is usually measured by titration with a standard solution of sodium hydroxide and expressed in terms of its calcium carbonate equivalent. (See mineral acidity, total acidity, carbon dioxide.)
The quantitative capacity of aqueous solutions to react with hydroxyl ions. It is measured by titration with a standard solution of a base to a specified end point. Usually expressed as milligrams per liter of calcium carbonate.
The capacity for neutralizing an alkaline substance.
1.Proportion of strong base (for example sodium hydroxide) that is needed to balance a pH sample. It is used to measure the base neutralising capacity of a water.
The presence of excess hydrogen ions (protons) compared to hydroxide ions. The opposite of alkalinity; low on the pH scale.
The base neutralizing capacity of a water is known as acidity. Acids contribute to corrosiveness, influence chemical reactions, and chemical/biological processes. Acidity is determined using a titrametric or potentiometric method.
The level of concentration of acid in water. Acid will neutralize an alkali or base. It is usually expressed in terms of its calcium carbonate equivalent
A general term applying to substances on the acid side of neutral-principally the degree of acidity (1 - 7 on the Ph scale, 7 being neutral).
Degree of acid found in a given paper substance measured by pH level. From 0 to 7 is classified acid as opposed to 7 to 14, which is classified alkaline.
The ability to neutralize OH- ions. This may be due to mineral acids in the water, and to hydrolysis of some metal ions
The quality, state or degree of being acid. In oils, acidity denotes the presence of acid-type constituents whose concentration is usually defined in terms of neutralization number.
A measure of the capacity of water to neutralize a strong base. In natural water this capacity is usually attributable to the presence of acids such as carbonic, nitric, sulphuric and organic acids or to acid cations like aluminum. See also pH. [Lat. acidus, sour.
A measure of the concentration of hydrogen ions, often on a pH scale from 1 to 14 where 1 is very acidic, 14 is very basic (alkaline) and 7 is neutral.
(exchangeable) The aluminum and hydrogen that can be replaced from an acid soil by an unbuffered salt solution such as KCl or NaCl
The extent to which the pH value of a solution falls below 7. Cf. Alkalinity (BCFT). See Soil, Acid.
In lubricants, acidity denotes the presence of acid-type constituents whose concentration is usually defined in terms of total acid number. The constituents vary in nature and may or may not markedly influence the behavior of the lubricant.
The hydrogen ion activity in the soil solution expressed as a pH value.
All soils vary naturally in their acidity, this affects the crops that you can grow, although most fruit and veg will tolerate a wide range of soil acidity there are certain plants that require or prefer either acid or alkaline conditions. If you'd like to know what pH (acidity level) your soil is you can test it using a kit which should be available at your local nursery
A measure of how acid a solution may be. A solution with a pH of less than 7.0 is considered acidic.
Represents the amount of free carbon dioxide mineral acids and salts which hydrolise to give hydrogen ions in water. pH is the measure of hydrogen ions concentration.
Degree of acid found in a given paper measured by the pH factor. pH is measured from 0 to 14, with 7 representing neutral between acid and alkaline. From 0 to 7 is considered acid as opposed to 7 to 14 which is alkaline.
The activity of hydrogen ions in a solution. It is measured and expressed as a pH value.
a measure of the capacity of a solution to neutralize bases
Defined as the amount of alkali e.g. as millilitres of 0.1N sodium hydroxide which is needed to neutralise the titratable acids in 10g of starch product under defined conditions.
Represents the amount of free carbon dioxide, mineral acids, and salts (especially sulfates or iron and aluminum) which hydrolyze to give hydrogen ions in water; is reported as milliequivalents per liter of acid, or ppm acidity as calcium carbonate, or pH, the measure of hydrogen ion concentration.
a characteristic that can make water corrosive and unpleasant; acidity must generally be corrected with neutralization
The quantitative capacity of a water or solution to neutralize an alkali. Acidity is usually measured by titration with a standard solution of sodium hydroxide and expressed in ppm or mg/L of calcium carbonate equivalent.
The state of being acidic (corrosive), as opposed to being basic; measuring below neutral 7.0 on the pH scale.
Definition: The quantitative capacity of water to neutralize a base, expressed in ppm or mg/L calcium carbonate equivalent. The number of hydrogen atoms that are present determines this. It is usually measured by titration with a standard solution of sodium hydroxide.
