Main page (Russian)
Search in database (English)
Properties of substance:
copper(I) iodide
Synonyms:
cuprous iodide
Group of substances:
inorganic
Physical appearance:
colorless cubic crystals
Empirical formula (Hill's system for organic substances):
CuI
Structural formula as text:
CuI
Molar/atomic mass: 190.45
Melting point (°C):
600
Boiling point (°C):
1320
Solubility (g/100 g of solvent):
acetone
: insoluble [
Ref.
]
acetonitrile
: 3.52 (18°C) [
Ref.
]
ammonia liquid
: very soluble [
Ref.
]
carbon disulphide
: insoluble [
Ref.
]
dimethylsulfoxide
: 0.9 (30°C) [
Ref.
]
methyl acetate
: soluble [
Ref.
]
methylene iodide
: practically insoluble [
Ref.
]
pyridine
: 1.74 (25°C) [
Ref.
]
water
: 0.0005 (18°C) [
Ref.
]
Density:
5.65 (20°C, g/cm
3
)
Vapour pressure (Torr):
10 (654°C)
100 (905°C)
Electrode potential:
CuI + e
-
→ Cu + I
-
, E = -0.185 V (water, 25°C)
Dissociation:
pK
sp
(0) = 12 (20°C, water)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-68 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-69.7 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
96.7 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
54 (s)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
8.28
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
25
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
153.2 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
255.6 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
36.5 (g)
References:
Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 305-306
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 490
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 156-157 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 80 [Russian]
Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 746 [Russian]
What information do you need?
© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru