diiodomethane

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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):

CH₂I₂

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/cm³)
3.3326 (15°C, g/cm³)
3.3254 (40°C, g/cm³)
2.722 (180°C, g/cm³)

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_fH⁰ (298.15 K, kJ/mol):

67 (l)

Standard molar entropy S⁰ (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_fusH (kJ/mol):

12.02

Standard molar enthalpy (heat) of formation Δ_fH⁰ (298.15 K, kJ/mol):

121 (g)

Standard molar entropy S⁰ (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)

LD₅₀ (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

Properties of substance:

diiodomethane

Synonyms:

Group of substances:

Physical appearance:

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

Structural formula as text:

Molar/atomic mass: 267.83

Melting point (°C):

Boiling point (°C):

Decomposition temperature (°C):

CAS №: 75-11-6

Solubility (g/100 g of solvent):

Density:

Refractive index (nD):

Vapour pressure (Torr):

Permittivity (dielectric constant):

Dipole moment (D):

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

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

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

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

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

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

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

LD50 (mg/kg):

References:

Refractive index (n_D):

Standard molar enthalpy (heat) of formation Δ_fH⁰ (298.15 K, kJ/mol):

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

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

Molar enthalpy (heat) of fusion Δ_fusH (kJ/mol):

Standard molar enthalpy (heat) of formation Δ_fH⁰ (298.15 K, kJ/mol):

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

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

LD₅₀ (mg/kg):