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Properties of substance:
silver sulfate
Group of substances:
inorganic
Physical appearance:
white rhombic crystals
Empirical formula (Hill's system for organic substances):
Ag
2
O
4
S
Structural formula as text:
Ag2SO4
Molar/atomic mass: 311.79
Melting point (°C):
660
Decomposition temperature (°C):
1085
Solubility (g/100 g of solvent):
1,4-dioxane
: insoluble (25°C) [
Ref.
]
acetic acid
: practically insoluble [
Ref.
]
acetonitrile
: 0.0418 (25°C) [
Ref.
]
ethanol
: insoluble [
Ref.
]
ethyl acetate
: difficulty soluble [
Ref.
]
hydrogen fluoride
: insoluble [
Ref.
]
methanol
: insoluble [
Ref.
]
sulfur dioxide
: insoluble [
Ref.
]
sulfuric acid
: 25.44 (13°C) [
Ref.
]
sulfuric acid
: 31.56 (24.5°C) [
Ref.
]
sulfuric acid
: 36 (29.9°C) [
Ref.
]
sulfuric acid
: 127.01 (96°C) [
Ref.
]
water
: 0.57 (0°C) [
Ref.
]
water
: 0.69 (10°C) [
Ref.
]
water
: 0.8 (20°C) [
Ref.
]
water
: 0.84 (25°C) [
Ref.
]
water
: 0.89 (30°C) [
Ref.
]
water
: 0.98 (40°C) [
Ref.
]
water
: 1.15 (60°C) [
Ref.
]
water
: 1.3 (80°C) [
Ref.
]
water
: 1.41 (100°C) [
Ref.
]
Multicomponent solubility (in wt%):
water 87.714%, sulfuric acid 11.34%, silver sulfate 0.946%, 25 °C, separating phase: Ag2SO4 [
Ref.
]
water 20.24%, sulfuric acid 74.26%, silver sulfate 5.5%, 25 °C, separating phase: Ag2SO4 + β-AgHSO4 [
Ref.
]
water 14.96%, sulfuric acid 77.9%, silver sulfate 7.14%, 25 °C, separating phase: AgHSO4 [
Ref.
]
water 93.44%, potassium sulfate 5.62%, silver sulfate 0.94%, 33 °C [
Ref.
]
water 87.023%, potassium sulfate 11.8%, silver sulfate 1.177%, 33 °C [
Ref.
]
Density:
5.45 (29°C, g/cm
3
)
Dissociation:
pK
sp
(0) = 4.7 (20°C, water)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-717.2 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-619.6 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
199.8 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
131.4 (s)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
17.9
References:
Dictionary of Inorganic Compounds. - Vol. 1: Ac-C10, part 1. - Springer Science+Business Media Dordrecht, 1992. - pp. 14
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 73-76
Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 267 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 98-99 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 201 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru