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Properties of substance:
hydrogen sulfide
Group of substances:
inorganic
Physical appearance:
colorless gas
Empirical formula (Hill's system for organic substances):
H
2
S
Structural formula as text:
H2S
Molar/atomic mass: 34.08
Melting point (°C):
-85.6
Boiling point (°C):
-60.35
Solubility (g/100 g of solvent):
benzene
: 2.6 (20°C) [
Ref.
]
bromobenzene
: 0.85 (20°C) [
Ref.
]
bromoethane
: 2 (20°C) [
Ref.
]
bromoform
: 0.83 (20°C) [
Ref.
]
carbon disulphide
: 0.63 (20°C) [
Ref.
]
carbon tetrachloride
: 0.97 (20°C) [
Ref.
]
chloroform
: 3.3 (20°C) [
Ref.
]
dimethylsulfoxide
: reaction [
Ref.
]
dodecane
: 1.1 (20°C) [
Ref.
]
ethanol
: 3.44 (0°C) [
Ref.
]
ethanol
: 2.3 (10°C) [
Ref.
]
ethanol
: 1.43 (20°C) [
Ref.
]
hexadecane
: 0.92 (20°C) [
Ref.
]
hexane
: 1.4 (20°C) [
Ref.
]
hydrogen chloride liquid anhydrous
: 44.3 (-117.2°C) [
Ref.
]
hydrogen chloride liquid anhydrous
: 8.7 (-115.7°C) [
Ref.
]
hydrogen chloride liquid anhydrous
: 589.7 (-92.3°C) [
Ref.
]
monochlorbenzene
: 1.2 (20°C) [
Ref.
]
octane
: 1.4 (20°C) [
Ref.
]
oxygen liquid
: 0.0053 (-195.6°C) [
Ref.
]
pentachloroethane
: 0.91 (20°C) [
Ref.
]
sulfur fused
: 0.057 (126°C) [
Ref.
]
sulfur fused
: 0.067 (141°C) [
Ref.
]
sulfur fused
: 0.133 (167°C) [
Ref.
]
sulfur fused
: 0.19 (300°C) [
Ref.
]
sulfur fused
: 0.189 (371°C) [
Ref.
]
sulfur fused
: 0.171 (400°C) [
Ref.
]
sulfur fused
: 0.098 (440°C) [
Ref.
]
sulfur fused
: 0.049 (444°C) [
Ref.
]
tetrachloroethene
: 0.79 (20°C) [
Ref.
]
toluene
: 2.7 (20°C) [
Ref.
]
trichloroethylene
: 1.3 (20°C) [
Ref.
]
water
: 0.699 (0°C) [
Ref.
]
water
: 0.443 (15°C) [
Ref.
]
water
: 0.379 (20°C) [
Ref.
]
water
: 0.351 (25°C) [
Ref.
]
water
: 0.286 (35°C) [
Ref.
]
water
: 0.233 (40°C) [
Ref.
]
water
: 0.146 (60°C) [
Ref.
]
water
: 0.041 (90°C) [
Ref.
]
Density:
1.217 (-195°C, g/cm
3
)
1.12 (-86°C, g/cm
3
)
0.938 (-81°C, g/cm
3
)
0.964 (-60°C, g/cm
3
)
0.001539 (0°C, g/cm
3
)
Reactions of synthesis:
[
Ref.1
]
CaS + MgCl
2
+ 2H
2
O → CaCl
2
+ Mg(OH)
2
+ H
2
S
Reactions:
[
Ref.1
]
[Cu(NH
3
)
4
]SO
4
* H
2
O + 3H
2
S → CuS + (NH
4
)
2
SO
4
+ 2NH
4
HS + H
2
O
[
Ref.1
,
Ref.2
,
Ref.3
]
H
2
S + I
2
→ 2HI + S
[
Ref.1
]
(CH
3
COO)
2
Hg + H
2
S → HgS + 2CH
3
COOH
Vapour pressure (Torr):
0.000085 (-183°C)
Dissociation:
pK
a
(1) = 7.2 (25°C, water)
pK
a
(2) = 14 (25°C, water)
Permittivity (dielectric constant):
8.99 (-78°C)
Speed sound (m/s):
1497 (-76°C, aggregative state - liquid)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-21 (g)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-33.8 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
205.7 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
34.2 (g)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
2.38
Enthalpy (heat) of vaporization at boiling point Δ
vap
H (kJ/mol)
18.67 (l) [
Ref.
]
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol)
14.08 (l) [25°C] [
Ref.
]
Gas phase basicity Δ
base
G (298 K, kJ/mol)
-673.8 (g) [
Ref.
]
Critical temperature (°C):
100.4
Critical pressure (MPa):
9.01
Critical density (g/cm
3
):
0.349
References:
Inorganic Syntheses. - Vol. 1. - New York and London, 1939. - pp. 111-113
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 594-598
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 51-53 [Russian]
Гринвуд Н., Эрншо А. Химия элементов. - Т.2. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 37-38 [Russian]
Гутман В. Химия координационных соединений в неводных растворах. - М.: Мир, 1971. - pp. 67-69 [Russian]
Девяткин В.В., Ляхова Ю.М. Химия для любознательных, или о чем не узнаешь на уроке. - Ярославль: Академия Холдинг, 2000. - pp. 51-52 [Russian]
Девятых Г.Г., Зорин А.Д. Летучие неорганические гидриды особой чистоты. - М.: Наука, 1974 [Russian]
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 190-191 [Russian]
Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 323-324 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 97 [Russian]
Реми Г. Курс неорганической химии. - Т.1. - М., 1963. - pp. 784-786 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 334 [Russian]
Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 979-980 [Russian]
Справочник сернокислотчика. - Под ред. Малина К.М. - М.: Химия, 1971. - pp. 51-53 [Russian]
Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 329-330 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru