Hydrogen sulfide

June 26th, 2008 by

Hydrogen sulfide

IUPAC name
Hydrogen sulfide, sulfane
Other names
Sulfuretted hydrogen; sulfane; sulfur hydride; sour gas; sulfurated hydrogen; hydrosulfuric acid; sewer gas; stink damp
Identifiers
CAS number
RTECS number
MX1225000
Properties
Molecular formula
H2S
Molar mass
34.082 g/mol
Appearance
Colorless gas.
Density
1.363 g/L, gas.
Melting point
-82.30 °C (190.85 K)
Boiling point
-60.28 °C (212.87 K)
Solubility in water
0.25 g/100 mL (40 °C)
Acidity (pKa)
6.89
19±2 (See Text)
Structure
Molecular shape
Bent
Dipole moment
0.97 D
Hazards
EU classification
Corrosive(C)
Very Toxic (T+)
Highly Flammable (F+)
R-phrases
R12, R26, R50
S-phrases
(S1/2), [...]

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