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Properties of substance:

sarcosine

Group of substances:

organic

Physical appearance:

colorless rhombic crystals

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

C3H7NO2

Structural formula as text:

CH3NHCH2COOH

Molar/atomic mass: 89.093

Melting point (°C):

210

Decomposition temperature (°C):

210

Solubility (g/100 g of solvent):

diethyl ether: insoluble [Ref.]
ethanol: difficulty soluble [Ref.]
water: 30 (20°C) [Ref.]

Hygroscopic:

yes

Dissociation:

pKBH+ (1) = 2.12 (25°C, water)
pKa (1) = 10.2 (25°C, water)

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

-513.3 (s)

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

-367.3 (g)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-24
  2. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 201
  3. Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 72
  4. Модифицированные аминокислоты и пептиды на их основе. - под ред. Чипенса Г.И. - Рига: Зинатне, 1987. - pp. 19-28 [Russian]
  5. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 940-941 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru