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Properties of substance:

sorbic acid

Group of substances:

organic

Physical appearance:

colorless needles crystals

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

C6H8O2

Structural formula as text:

CH3CH=CHCH=CHCOOH

Molar/atomic mass: 112.3

Melting point (°C):

134.5

Boiling point (°C):

228

Decomposition temperature (°C):

228

Solubility (g/100 g of solvent):

acetic acid 95%: 11.4 (room temperature) [Ref.]
acetone: 11.6 (room temperature) [Ref.]
benzene: 2.6 [Ref.]
benzene: very soluble (80°C) [Ref.]
carbon tetrachloride: 0.8 (room temperature) [Ref.]
chloroform: soluble [Ref.]
diethyl ether: 7 (room temperature) [Ref.]
ethanol 95%: 16.3 (room temperature) [Ref.]
water: 0.16 (room temperature) [Ref.]
water: 0.1906 (30°C) [Ref.]
water: very soluble (100°C) [Ref.]

Numerical data:

Year of discovery: 1859

Not numerical data:

volatile in steam

Dissociation:

pKa (1) = 4.77 (25°C, water)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-294
  2. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 8.50
  3. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 276
  4. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 952-953 [Russian]
  5. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 388-389 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru