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Properties of substance:

hydroxypropanedioic acid

Synonyms:

tartronic acid

Group of substances:

organic

Physical appearance:

colorless prismatic crystals

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

C3H4O5

Structural formula as text:

HOCH(COOH)2

Molar/atomic mass: 120.06

Melting point (°C):

160

Decomposition temperature (°C):

160

CAS №: 80-69-3

Solubility (g/100 g of solvent):

diethyl ether: sparingly soluble [Ref.]
ethanol: soluble [Ref.]
water: soluble [Ref.]

Dissociation:

pKa (1) = 2.37 (25°C, water)
pKa (2) = 4.74 (25°C, water)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 3-300
  2. Dictionary of organic compounds. - Vol. 3, naphthacarbazole - zygadenine. - М.: ИИЛ, 1949. - pp. 661
  3. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 964-965 [Russian]
  4. Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 94 [Russian]
  5. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 381 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru