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Properties of substance:
barium carbonate
Group of substances:
inorganic
Physical appearance:
white rhombic crystals
Empirical formula (Hill's system for organic substances):
CBaO
3
Structural formula as text:
BaCO3
Molar/atomic mass: 197.35
Decomposition temperature (°C):
1450
CAS №: 513-77-9
Solubility (g/100 g of solvent):
ethanol
: insoluble [
Ref.
]
ethyl acetate
: insoluble [
Ref.
]
water
: 0.0016 (8.8°C) [
Ref.
]
water
: 0.0022 (18°C) [
Ref.
]
water
: 0.0024 (24.2°C) [
Ref.
]
Density:
4.43 (20°C, g/cm
3
)
Reactions:
[
Ref.1
]
BaCO
3
+ WO
3
→ BaWO
4
+ CO
2
Dissociation:
pK
sp
(0) = 8.1 (25°C, water)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-1219 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-1139 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
112 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
85.35 (s)
LD
50
(mg/kg):
650 (white rats, oral)
References:
Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 340
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 150-152
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 366 [Russian]
Вредные химические вещества: Неорганические соединения элементов I-IV групп. Справочник. - Л.: Химия, 1988. - pp. 136 [Russian]
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 102-103 [Russian]
Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 178 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 55 [Russian]
Спицын В.И., Мартыненко Л.И. Неорганическая химия. - Ч.2. - М.: ИМУ, 1994. - pp. 44-45 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 285 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru