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Properties of substance:
lead(II) hydroxide
Group of substances:
inorganic
Physical appearance:
colorless hexagonal crystals
Empirical formula (Hill's system for organic substances):
H
4
O
8
Pb
6
Structural formula as text:
Pb6O4(OH)4
Molar/atomic mass: 1375.227
Decomposition temperature (°C):
145
Solubility (g/100 g of solvent):
acetone
: insoluble [
Ref.
]
water
: 0.0155 (20°C) [
Ref.
]
Dissociation:
pK
a
(1) = 15.7 (18°C, water)
pK
b
(1) = 3.02 (25°C, water)
pK
sp
(0) = 15.33 (20°C, water)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-512.5 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-451.2 (s)
References:
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 186-187 [Russian]
Неорганическая химия. - Под ред. Третьякова Ю.Д., Т.2. - М.: Academa, 2004. - pp. 143-144 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 94 [Russian]
Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 233 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru