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Properties of substance:
diiodomethane
Synonyms:
methylene iodide
Group of substances:
organic
Physical appearance:
colorless liquid
Empirical formula (Hill's system for organic substances):
CH
2
I
2
Structural formula as text:
CH2I2
Molar/atomic mass: 267.83
Melting point (°C):
6.02
Boiling point (°C):
180.4
Decomposition temperature (°C):
180
CAS №: 75-11-6
Solubility (g/100 g of solvent):
diethyl ether
: soluble [
Ref.
]
ethanol
: soluble [
Ref.
]
water
: 0.0833 (25°C) [
Ref.
]
water
: 0.1238 (30°C) [
Ref.
]
Density:
3.119 (6°C, g/cm
3
)
3.3326 (15°C, g/cm
3
)
3.3254 (40°C, g/cm
3
)
2.722 (180°C, g/cm
3
)
Refractive index (n
D
):
1.7425 (15°C)
Vapour pressure (Torr):
11 (70°C)
Permittivity (dielectric constant):
5.32 (25°C)
Dipole moment (D):
1.14 (20°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
67 (l)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
215 (l)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
134 (l)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
12.02
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
121 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
310 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
57.6 (g)
LD
50
(mg/kg):
403 (rats, intraperitoneal)
830 (mice, subcutaneous)
467 (mice, intraperitoneal)
References:
Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 12ed., Vol. 1-5. - Wiley, 2012. - pp. 1638
Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 24
Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 6
Губен И. Методы органической химии. - Т. 3, Вып. 3. - М.: Главная редакция химической литературы, 1935. - pp. 448 [Russian]
Морачевский А.Г., Сладков И.Б. Физико-химические свойства молекулярных неорганических соединений. - Л.: Химия, 1987. - pp. 33, 47, 55, 143, 149 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 790-791 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru