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Properties of substance:

halon 10001



skc-file

Synonyms:

methyl iodide
methyl iodine
iodomethane

Group of substances:

organic

Physical appearance:

colorless liquid

Empirical formula (Hill's system for organic substances):

CH3I

Structural formula as text:

CH3I

Molar/atomic mass: 141.94

Melting point (°C):

-66.1

Boiling point (°C):

42.5

Decomposition temperature (°C):

270

CAS №: 74-88-4

Solubility (g/100 g of solvent):

acetone: soluble [Ref.]
benzene: soluble [Ref.]
carbon tetrachloride: soluble [Ref.]
diethyl ether: miscible [Ref.]
ethanol: miscible [Ref.]
water: 1.565 (0°C) [Ref.]
water: 1.446 (10°C) [Ref.]
water: 1.419 (20°C) [Ref.]
water: 1.429 (30°C) [Ref.]

Density:

2.3346 (0°C, g/cm3)
2.279 (20°C, g/cm3)
2.25102 (30°C, g/cm3)

Reactions:

  1. [Ref.1]
    CH3I + Hg → CH3HgI
  2. [Ref.1]
    NI3 + 4CH3I → (CH3)4NI + 3I2

Refractive index (nD):

1.538 (20°C)

Dipole moment (D):

1.313 (20°C)

Viscosity (mPa·s):

0.46 (30°C)

Surface tension (mN/m):

25.8 (43.5°C)

Speed sound (m/s):

154 (43°C, aggregative state - gas)

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-8.4 (l)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

20.5 (l)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

162.8 (l)

Heat of combustion (kJ/mol):

814.6

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

14.4 (g)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

254.1 (g)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

44.1 (g)

Critical temperature (°C):

254.8

Critical pressure (MPa):

6.53

References:

  1. Dictionary of organic compounds. - Vol. 2, Eccaine - Myrtillin chloride. - London, 1946. - pp. 746-747
  2. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 22
  3. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 8
  4. Вредные химические вещества: Углеводороды, галогенпроизводные углеводородов. Справочник. - Л.: Химия, 1990. - pp. 603-605 [Russian]
  5. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 161 [Russian]
  6. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 372 [Russian]
  7. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 115 [Russian]
  8. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 332 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru