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Hydrogen sulfide is a chemical compound with the formula H 2 S. It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. [11]
- H₂S
- 34.08 g·mol−1
- −85.5 °C (−121.9 °F; 187.7 K)
- 3.980 g dm−3 (at 20 °C)
Hydrogen sulfide (also known as H 2 S, sewer gas, swamp gas, stink damp, and sour damp) is a colorless gas known for its pungent "rotten egg" odor at low concentrations. It is extremely flammable and highly toxic. Hydrogen sulfide is used or produced in a number of industries, such as. Hydrogen sulfide also occurs naturally in sewers, manure ...
Hydrogen sulfide is a highly flammable, explosive gas, and can cause possible life-threatening situations if not properly handled. In addition, hydrogen sulfide gas burns and produces other toxic vapors and gases, such as sulfur dioxide.
Concentration (ppm)Symptoms/effects0.00011-0.00033Typical background concentrations0.01-1.5Odor threshold (when rotten egg smell is ...2-5Prolonged exposure may cause nausea, ...20Possible fatigue, loss of appetite, ...Hydrogen sulfide (H₂S) is a colorless gas with a strong odor of rotten eggs. Exposure to hydrogen sulfide may cause irritation to the eyes and respiratory system. It can also cause apnea, coma, convulsions; dizziness, headache, weakness, irritability, insomnia; stomach upset, and if liquid: frostbite. Workers may be harmed from exposure to ...
Firedamp is a gas that occurs naturally in coal seams. The gas is nearly always methane (CH 4) and is highly inflammable and explosive when present in the air in a proportion of 5 to 14 percent. White damp, or carbon monoxide (CO), is a particularly toxic gas; as little as 0.1 percent can cause death within a few minutes. It is a product of the ...
- The Editors of Encyclopaedia Britannica
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Hydrogen sulfide (H 2 S) is a flammable, colorless gas that smells like rotten eggs. People usually can smell hydrogen sulfide at low concentrations in air, ranging from 0.0005 to 0.3 parts hydrogen sulfide per million parts of air (ppm). At high concentrations, a person might lose their ability to smell it.
Hydrogen sulfide. Hydrosulfuric acid, Sewer gas, Sulfuretted hydrogen. Colorless gas with a strong odor of rotten eggs. [Note: Sense of smell becomes rapidly fatigued & can NOT be relied upon to warn of the continuous presence of H 2 S. Shipped as a liquefied compressed gas.] Strong oxidizers, strong nitric acid, metals.
