Main page (Russian) Search in database (English)

Properties of substance:

trichloroacetic acid

Group of substances:

organic

Physical appearance:

colorless rhombic crystals

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

C2HCl3O2

Structural formula as text:

CCl3COOH

Molar/atomic mass: 163.38

Melting point (°C):

57.5

Boiling point (°C):

197.5

Solubility (g/100 g of solvent):

1,2-dichloroethane: soluble [Ref.]
ammonia liquid : very easily soluble [Ref.]
diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]
water: 120 (25°C) [Ref.]

Properties of solutions:

48% (wt.), solvent - water
  Dynamic viscosity (mPa·s) = 3.076 (20°)
  Density (g/cm3) = 1.2682 (20°)
  Index of refraction = 1.3977 (20°)

Density:

1.6298 (61°C, g/cm3)

Reactions:

  1. Yeild 88%. [Ref.1]
    CCl3COOH + CH3OCHCl2 → CCl3COCl + HCOOCH3 + HCl

Refractive index (nD):

1.4603 (61°C)

Dissociation:

pKa (1) = 0.66 (20°C, water)
pKa (1) = 11.6 (25°C, acetic acid)
pKa (1) = 1.46 (20°C, formamide)

Permittivity (dielectric constant):

4.6 (60°C)

Dipole moment (D):

1.1 (20°C)

Surface tension (mN/m):

27.8 (80.2°C)

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

-503.3 (s)

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

5.88

Heat of combustion (kJ/mol):

388.3

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-21
  2. CRC Handbook of Chemistry and Physics. - CRC Press, 2002
  3. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 68-71
  4. Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 20
  5. Промышленные хлорорганические продукты: Справочник. - М.: Химия, 1978. - pp. 171-178 [Russian]
  6. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 185, 223 [Russian]
  7. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 1028-1029 [Russian]
  8. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 324 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru