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Properties of substance:
methyl tribromide
Synonyms:
bromoform
tribromomethane
Group of substances:
organic
Physical appearance:
colorless liquid
Empirical formula (Hill's system for organic substances):
CHBr
3
Structural formula as text:
HCBr3
CAS No: 75-25-7
Molar/atomic mass: 252.75
Melting point (°C):
8.5
Boiling point (°C):
149.5
Solubility (g/100 g of solvent):
ammonia liquid
: miscible [
Ref.
]
benzene
: soluble [
Ref.
]
chloroform
: soluble [
Ref.
]
diethyl ether
: miscible [
Ref.
]
ethanol
: miscible [
Ref.
]
formic acid
: 25.3 (25°C) [
Ref.
]
ligroin: soluble [
Ref.
]
water
: 0.3001 (15°C) [
Ref.
]
water
: 0.319 (30°C) [
Ref.
]
Density:
2.8912 (20°C, g/cm
3
)
Refractive index (n
D
):
1.598 (20°C)
Vapour pressure (Torr):
46 (15°C)
Permittivity (dielectric constant):
4.39 (20°C)
Viscosity (mPa·s):
1.89 (25°C)
Surface tension (mN/m):
44.87 (25°C)
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
43.45
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-22.3 (l)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-5 (l)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
220.9 (l)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
130.7 (l)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
23.8 (g)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
8 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
330.9 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
71.2 (g)
LD
50
(mg/kg):
1147 (rats, oral)
References:
Blunt J.W., Munro M.H.G. Dictionary of marine Natural Products. - Chapman and Hall/CRC, 2008. - pp. 1880
CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-19
Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 12
Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 3
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 132 [Russian]
Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1105-1106 [Russian]
Химия и жизнь. - 1990. - №5. - pp. 82 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru