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Properties of substance:
potassium fluoroborate
Synonyms:
potassium tetrafluoroborate
Group of substances:
inorganic
Physical appearance:
colorless rhombic crystals
Empirical formula (Hill's system for organic substances):
BF
4
K
Structural formula as text:
KBF4
Molar/atomic mass: 125.91
Melting point (°C):
530
Decomposition temperature (°C):
930
Solubility (g/100 g of solvent):
diethyl ether
: sparingly soluble [
Ref.
]
ethanol
: insoluble (20°C) [
Ref.
]
ethanol
: slightly soluble (78°C) [
Ref.
]
propylene carbonate
: 0.18 (25°C) [
Ref.
]
water
: 0.45 (20°C) [
Ref.
]
water
: 1 (33°C) [
Ref.
]
water
: 6.27 (100°C) [
Ref.
]
Density:
2.5 (20°C, g/cm
3
)
Reactions of synthesis:
[
Ref.1
]
KOH + HBF
4
→ KBF
4
+ H
2
O
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-1884 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
130 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
115 (s)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
18
References:
CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 4-82
Inorganic Syntheses. - Vol. 1. - New York and London, 1939. - pp. 24-26
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 134-135 [Russian]
Новый справочник химика и технолога. Химическое равновесие. Свойства растворов. - СПб.: НПО Профессионал, 2004, 2007. - pp. 209 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 40-41 [Russian]
Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 204 [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