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Properties of substance:
potassium metaborate
Group of substances:
inorganic
Physical appearance:
colorless hexagonal crystals
Empirical formula (Hill's system for organic substances):
BKO
2
Structural formula as text:
KBO2
Molar/atomic mass: 81.908
Melting point (°C):
940
Solubility (g/100 g of solvent):
diethyl ether
: insoluble [
Ref.
]
ethanol
: insoluble [
Ref.
]
water
: 71 (30°C) [
Ref.
]
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-982 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
80 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
67 (s)
References:
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 126-127 [Russian]
Справочник экспериментальных данных по растворимости солевых систем. - Т. 3. - Л.: ГНТИХЛ, 1961. - pp. 1788-1789 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru