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Properties of substance:

trans-o-chlorocinnamic acid

Group of substances:

organic

Physical appearance:

yellowish crystals

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

C9H7ClO2

Structural formula as text:

ClC6H4CH=CHCOOH

Molar/atomic mass: 182.604

Melting point (°C):

212

CAS №: 939-58-2

Solubility (g/100 g of solvent):

diethyl ether: very soluble [Ref.]
ethanol: very soluble [Ref.]

Dissociation:

pKa (1) = 4.23 (25°C, water)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-102
  2. Dictionary of organic compounds. - vol.1, Abietic acid - Dypnone. - London, 1946. - pp. 455
  3. Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 96 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru