A gaseous compound, H S, of sulfur and hydrogen commonly found in petroleum. which causes the foul smell of sour petroleum fractions. It is extremely poisonous and corrosive. See also hydrogen embrittlement.
a flammable, colorless gaseous compound of hydrogen and sulfur (H2S) , which in small amounts has the odor of rotten eggs. Sometimes found in petroleum, it causes the foul smell of petroleum fractions. In dangerous concentrations, it is extremely corrosive and poisonous, causing damage to skin, eyes, breathing passages, and lungs and attacking and paralyzing the nervous system, particularly that part controlling the lungs and heart. In large amounts, it deadens the sense of smell. Also called hepatic gas of sulfureted hydrogen.
An odorous gas sometimes found in sewer systems. Recognizable by a rotten egg odor. Chemical formula is H2S.
A molecule composed of a hydrogen and sulfur atom. It is a toxic compound which has a rotten egg odor. It is synthesized anaerobically by unwanted bacteria.
A flammable, very poisonous and corrosive gas with a markedly disagreeable odor, having the chemical formula of H2S that is a contaminant in natural gas and natural gas liquids.
(H2S) A lethal gas produced in sewers and digesters by anaerobic decomposition. Detectable in low (0.01%) concentrations by its characteristic "rotten egg" odor, it deadens the sense of smell in higher concentrations or after prolonged exposure. Respiratory paralysis and death may occur quickly at concentrations as low as 0.07 percent by volume in air.
a toxic, rotten egg-smelling gas that occurs naturally in aquifers and sediments.
A criteria pollutant produced with geothermal steam and is emitted directly from these sources as well as other sources such as sewers. High concentrations of 500-800 ppm can be fatal and lower levels cause eye irritation and other effects. Hydrogen sulfide odors can be detected by the average person at 0.008 ppm and the AAQS are 0.025 ppm averaged for one hour. The standard is established to prevent widespread odor nuisances and health problems.
Gas produced during the anaerobic decomposition of organic material in wastewater. Associated with “rotten egg” smell, can cause corrosion of metal equipment.
produced naturally by the decomposition of any type oforganic or inorganic matter that contains sulfur, e.g., rotting eggs, wallboard, plant life, sewers, etc. and produces a rotten egg type odor.
CAS Number: 7783-06-4. A flammable, poisonous gas that has an odor suggestive of rotten eggs. It is found in many mineral waters and in decaying organic matter. Chemical formula = H2S. Molecular weight = 34.08 g/mol.
A flammable, poisonous gas, made of hydrogen and sulfur molecules, which smells like rotten eggs.
A colorless gas with rotten eggs odor. Used to purify hydrochloric and sulfuric acids, and to manufacture elementary sulfur. Hazard: Chemical asphyxia.
Hydrogen Sulfide is a colorless, very flammable gas. In low concentrations it smells like "rotten eggs" however the sense of smell is lost after 2-15 minutes of exposure making it impossible to smell dangerous concentrations. It is heavier than air. It is considered to be a very toxic gas. When H2S burns it produces another very toxic gas - Sulfur Dioxide (SO2). H2S is used in metallurgy, the preparation of phosphorous and oil additives, as well as a reagent in chemical analysis. During the recovery and processing of crude oil, H2S can contaminate the atmosphere and become a major health hazard
a gas characterized by a "rotten egg" smell that is often produced by and found in the vicinity of oil refineries, chemical plants and sewage treatment plants
This is not a routine test but is determined only upon request and on a separate special sample. It is a poisonous gas and will cause headache and nausea. It smells like "rotten eggs". It causes a black precipitate with many metals.
A gas, H2S, with the characteristic odor of rotten eggs, produced by anaerobic decomposition.
Hydrogen sulfide (HS) is a colorless gas that reeks of rotten eggs. HS poisoning is a rarity, mainly observed in industrial settings.
A highly toxic, highly flammable, heavier-than-air gas present in crude oil; normally removed during the refining process.
a sulfide having the unpleasant smell of rotten eggs
A toxic and lethal gas produced in sewers and digesters by anaerobic decomposition. It is detectable in low concentrations by its characteristic rotten-egg odor. It deadens the sense of smell in higher concentrations or after prolonged exposure.
A chemical that is toxic to most animals, but used by some bacteria to make food in a process known as chemosynthesis.
A gas with a rotten egg odor. This gas is produced under anaerobic conditions. Hydrogen sulfide is particularly dangerous because after a while it dulls the sense of smell. The odor is also not noticeable in high concentrations. This gas is very poisonous to the respiratory system. It is explosive, flammable and colorless.
A toxic gas formed by the anaerobic decomposition of organic matter. Chemical formula is H2S.
(hi dro gen sul fide) a flammable poisonous gas with a disagreeable odor suggestive of rotten eggs.
A gas emitted during decomposition of organic compounds. It also is a byproduct of oil refining and burning.
A poisonous, corrosive compound consisting of two atoms of hydrogen and one of sulfur, gaseous in its natural state. It is found in manufactured gas made from coals or oils containing sulphur and must be removed. It is also found to some extent in some natural gas. It is characterized by the odor of rotten eggs.
A toxic gas (H2S) that has a 'rotten egg' smell. It is found primarily in well water supplies or other anaerobic water sources. Contributes to corrosion in metallic pipes.
A common chemical found in the fluids of hydrothermal vents. When seawater is exposed to the sulfate in volcanic rock below the ocean floor, hydrogen sulfide is formed.
A toxic gas that is detectable by a strong "rotten egg" odor. Associated with high levels of bacterial decay. Commonly found together with iron and manganese contaminants.
A flammable, poisonous, corrosive gas with an odor suggestive of rotten eggs, which can occur naturally in the gaseous phase in natural gas reservoirs.
Also referred to as "sulfur water", hydrogen sulfide causes the rotten-egg smell sometimes present in drinking water. it is an acid which can cause rapid corrosion of all types of plumbing materials. The only good remedy is chemical oxidation followed by filtration.
A molecule composed of a hydrogen and sulfur atom. It is a toxic compound, which has a rotten egg odor. Unwanted bacteria synthesize it anaerobically.
The most prevalent chemical dissolved in the sea water of vents. It smells like rotten eggs and is produced when seawater reacts with sulfate in the volcanic rock below the ocean floor.
a colorless, poisonous gas with an odor of rotten eggs.
A gaseous compound, commonly known by its chemical formula, H2S, frequently found in oil and gas reservoirs. It has a distinctive rotten egg odor. It is extremely poisonous and corrosive and quickly deadens the olfactory nerve so that its odor is no longer a warning signal.
a poisonous gas composed of hydrogen and sulfur and having a rotten egg smell
an obnoxious gas with a "rotten egg" odor found in some water
Gas emitted during organic decomposition. Also a by-product of oil refining and burning. Smells like rotten eggs and, in heavy concentration, can kill or cause illness.
Dissolved gas that is sometimes found in water supplies. When water containing hydrogen sulfide is heated, it promotes the growth of sulfate reducing bacteria that produce a “rotten egg” smell.
A corrosive and flammable gas often found dissolved in well water and often accompanied by iron and low pH. It causes a black precipitate with many metals.
formed when anaerobic (without oxygen) bacteria interacts with organic material
Hydrogen sulfide (hydrogen sulphide in British English), H2S, is a colorless, toxic, flammable gas that is responsible for the foul odor of rotten eggs and flatulence. It often results when bacteria break down organic matter in the absence of oxygen, such as in swamps, and sewers (alongside the process of anaerobic digestion). It also occurs in volcanic gases, natural gas and some well waters.