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Properties of substance:
chromium(III) sulfate
Group of substances:
inorganic
Physical appearance:
hexagonal crystals
Empirical formula (Hill's system for organic substances):
Cr
2
O
1
2
S
3
Structural formula as text:
Cr2(SO4)3
Molar/atomic mass: 392.18
Decomposition temperature (°C):
700-735
Solubility (g/100 g of solvent):
ethanol
: slightly soluble [
Ref.
]
ethyl acetate
: insoluble [
Ref.
]
methylamine
: insoluble [
Ref.
]
water
: 64 (25°C) [
Ref.
]
Numerical data:
Magnetic susceptibility (mm
3
/kg): 30.1
Density:
3.01 (20°C, g/cm
3
)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-3308 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-2984 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
287.9 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
280.7 (s)
References:
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 212-213 [Russian]
Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 379 [Russian]
Неорганические соединения хрома: Справочник. - Л.: Химия, 1981. - pp. 195 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 111 [Russian]
Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 313 [Russian]
Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 667 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru