HYDROGEN SULFIDE manufacturers and suppliers

Hydrogen Sulfide suppliers

Properties

Melting point:: −85 °C(lit.)

Boiling point:: −60 °C(lit.)

Density: dgas 1.19 (air = 1.00)

vapor density: 1.19 (15 °C, vs air)

vapor pressure: 252 psi ( 21 °C)

FEMA: 3779 | HYDROGEN SULFIDE

Flash point:: -17℃

storage temp.: 2-8°C

solubility: soluble in H2O

pka: 7(at 25℃)

form: colorless gas

color: colorless gas; flammable

Odor: Strong rotten egg odor detectable at 0.001 to 0.1 ppm (mean = 0.0094 ppm); olfactory fatigue occurs quickly at high concentrations

Odor Threshold: 0.00041ppm

explosive limit: 6%

Water Solubility: 1g dissolves in H2O: 187mL (10°C), 242mL (20°C), 314 (30°C) [MER06]

Merck: 13,4823

BRN: 3535004

Dielectric constant: 9.3（-84℃）

Stability:: Stable. Highly flammable. May form explosive mixture with air. Note wide explosive limits. Incompatible with strong oxidizing agents, many metals. May react violently with metal oxides, copper, fluorine, sodium, ethanal.

Safety Information

Symbol(GHS): GHS02,GHS04,GHS06,GHS09

Signal word: Danger

Hazard statements: H220-H280-H330-H400

Precautionary statements: P260-P271-P273-P284-P304+P340+P310-P410+P403

Hazard Codes: F+,T+,N,F

Risk Statements: 12-26-50-40-36/37-19-11

Safety Statements: 9-16-36-38-45-61-28-26

RIDADR: UN 1053 2.3

WGK Germany: 2

RTECS: MX1225000

Autoignition Temperature: 260 °C

DOT Classification: 2.3, Hazard Zone B (Gas poisonous by inhalation)

HazardClass: 2.3

Toxicity: LC50 in mice, rats (ppm): 634, 712 (1 hr inhalation) (Vernot); LC50 in rats (ppm): 444 (4 hr inhalation) (Tansy)

IDLA: 100 ppm

Use

Hydrogen sulfide is a colorless, flammable, toxic gas with the characteristic odor of rotten eggs.It is produced naturally from the anaerobic bacterial decomposition of organic wastes, occurs in volcanic gases and hot springs, is a product of animal digestion, and is generated in industrial processes. Hydrogen is a natural component of natural gas and petroleum; it is only a small fraction of oil (hundreds of ppm), but may form an appreciable component of natural gas. Natural gas typically contains up to 5% hydrogen sulfide. Natural gas is considered sour if the hydrogen sulfide content exceeds 5.7 mg of H2S per cubic meter of natural gas. The process for removing hydrogen sulfide from sour gas is referred to as sweetening the gas. Because hydrogen sulfide is associated with anaerobic respiration in sewers and swamps, it is referred to as sewer gas, swamp gas, or stink damp.

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