Main page (Russian)
Search in database (English)
Properties of substance:
calcium phosphate
Group of substances:
inorganic
Physical appearance:
colorless trigonal crystals
Empirical formula (Hill's system for organic substances):
Ca
3
O
8
P
2
Structural formula as text:
Ca3(PO4)2
Molar/atomic mass: 310.18
Melting point (°C):
1670
Solubility (g/100 g of solvent):
acetic acid
: practically insoluble [
Ref.
]
acetone
: insoluble [
Ref.
]
ammonia liquid
: insoluble [
Ref.
]
diethyl ether
: insoluble [
Ref.
]
ethanol
: insoluble [
Ref.
]
ethyl acetate
: insoluble [
Ref.
]
methyl acetate
: insoluble [
Ref.
]
water
: 0.03 (25°C) [
Ref.
]
Density:
3.14 (20°C, g/cm
3
)
Reactions:
[
Ref.1
]
Ca
3
(PO
4
)
2
+ 6CO + 6Cl
2
→ 2POCl
3
+ 6CO
2
+ 3CaCl
2
Dissociation:
pK
sp
(0) = 29 (25°C, water)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-4137.6 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-3899.5 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
236 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
227.8 (s)
References:
Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 684-686
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 318-324
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 140-141 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 72, 239 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 26 [Russian]
What information do you need?
© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru
Search in database (English)