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Properties of substance:
potassium hydrogen sulfate
Synonyms:
potassium bisulfate
Group of substances:
inorganic
Physical appearance:
colorless monoclinic crystals
Empirical formula (Hill's system for organic substances):
HKO
4
S
Structural formula as text:
KHSO4
Molar/atomic mass: 136.16
Melting point (°C):
218.6
Decomposition temperature (°C):
300
Solubility (g/100 g of solvent):
acetone
: insoluble [
Ref.
]
ethanol
: insoluble [
Ref.
]
formic acid 95%
: 14.5 (19.3°C) [
Ref.
]
water
: 37 (0°C) [
Ref.
]
water
: 53 (20°C) [
Ref.
]
water
: 70 (40°C) [
Ref.
]
water
: 76.4 (60°C) [
Ref.
]
water
: 121.7 (100°C) [
Ref.
]
Hygroscopic:
yes
Density:
2.5 (20°C, g/cm
3
)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-1158.1 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-1043.5 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
142 (s)
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
18
References:
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 132-133 [Russian]
Краткий справочник по химии. - Под ред. Куриленко О.Д. - Киев: Наукова думка, 1974. - pp. 144-145 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 69 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 162, 699 [Russian]
Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 232 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru