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Properties of substance:

dibromomethane

Group of substances:

organic

Physical appearance:

colorless liquid

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

CH2Br2

Structural formula as text:

BrCH2Br

Molar/atomic mass: 173.85

Melting point (°C):

-52.8

Boiling point (°C):

97.8

CAS №: 74-95-3



Solubility (g/100 g of solvent):

acetone: miscible [Ref.]
chloroform: miscible [Ref.]
diethyl ether: miscible [Ref.]
ethanol: miscible [Ref.]
water: 1.173 (0°C) [Ref.]
water: 1.146 (10°C) [Ref.]
water: 1.148 (20°C) [Ref.]
water: 1.176 (30°C) [Ref.]
water: 1.61 (79.8°C) [Ref.]
water: 1.53 (90°C) [Ref.]

Density:

2.4953 (20°C, d4)
2.46 (25°C, d4)

Reactions:

  1. Yeild 63%. [Ref.1aster]
    CH2Br2 + D2O → CD2Br2 + H2O
  2. [Ref.1]
    CH2Br2 + 2Mg → CH2(MgBr)2

Half-life:

= 183 y (гидролиз при 25 С и рН 7)

Vapour pressure (Torr):

11.5 (0°C)
34.7 (20°C)
56.4 (30°C)

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

293.2 (g)

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

54.7 (g)

LD50 (mg/kg):

3738 (mice, subcutaneous)

References:

  1. Beilsteins Handbuch der Organischen Chemie. - Vierte Auflage, 1 Band, Berlin: Verlag von Julius Springer, 1918. - pp. 67
  2. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-19
  3. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 1.168
  4. Mackay D., Shiu W.Y., Ma K.-C., Lee S.C. Handbook of Physical-Chemical Properties and Enviromental Fate for Organic Chemacals. - 2ed, Vol.2. - CRC Press, 2006. - pp. 1128-1133
  5. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 22
  6. The Merck Index. - 15th ed. - Royal Society of Chemistry, 2013. - pp. 1124
  7. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 5
  8. Вредные химические вещества: Углеводороды, галогенпроизводные углеводородов. Справочник. - Л.: Химия, 1990. - pp. 579-580 [Russian]
  9. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 371 [Russian]
  10. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 331 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru