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Properties of substance:

L-(+)-tartaric acid

Group of substances:

organic

Physical appearance:

monoclinic crystals

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

C4H6O6

Structural formula as text:

HOOCCH(OH)CH(OH)COOH

Molar/atomic mass: 150.09

Melting point (°C):

174

Solubility (g/100 g of solvent):

1-propanol: 11.9 [Ref.]
benzene: insoluble [Ref.]
chloroform: insoluble [Ref.]
diethyl ether: 0.313 (20°C) [Ref.]
ethanol: 42.2 [Ref.]
glycerol: soluble [Ref.]
methanol: 74.5 [Ref.]
water: 115 (0°C) [Ref.]
water: 126 (10°C) [Ref.]
water: 139 (20°C) [Ref.]
water: 156 (30°C) [Ref.]
water: 195 (50°C) [Ref.]
water: 343 (100°C) [Ref.]

Dissociation:

pKa (1) = 3.02 (20°C, water)
pKa (2) = 4.36 (20°C, water)

Enthalpy (heat) of solution ΔsolH (kJ)

13.69 (s) [Ref.]

LD50 (mg/kg):

485 (mice, intravenous)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 8-116
  2. Stahl P.H., Wermuth C.G. Handbook of Pharmaceutical Salts: Properties, Selection, and Use. - Wiley-VCH, 2002. - pp. 308
  3. Свойства органических соединений: Справочник. - Под ред. Потехина А.А. - Л.: Химия, 1984. - pp. 138-139 [Russian]
  4. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1319 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru