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Properties of substance:
potassium pyrosulfate
Group of substances:
inorganic
Physical appearance:
colorless monoclinic crystals
Empirical formula (Hill's system for organic substances):
K
2
O
7
S
2
Structural formula as text:
K2S2O7
Molar/atomic mass: 254.32
Melting point (°C):
417
Decomposition temperature (°C):
470
Solubility (g/100 g of solvent):
water
: soluble [
Ref.
]
Density:
2.51 (25°C, g/cm
3
)
Standard molar enthalpy (heat) of formation Δ
f
H (298 K, kJ/mol)
-1987 (s) [
Ref.
]
Standard molar entropy S (298 K, J/(mol·K))
255 (s) [
Ref.
]
References:
CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 4-83
Бок Р. Методы разложения в аналитической химии. - М.: Химия, 1984. - pp. 86 [Russian]
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 132-133 [Russian]
Успехи химии. - 1965. - Т.34, №12. - pp. 2119-2120 [Russian]
Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 234 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru