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Properties of substance:

hydroxyhydroquinone

Synonyms:

1,2,4-benzenetriol

Group of substances:

organic

Physical appearance:

colorless leaflets crystals

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

C6H6O3

Structural formula as text:

C6H3(OH)3

Molar/atomic mass: 126.1

Melting point (°C):

140.5

Solubility (g/100 g of solvent):

benzene: insoluble [Ref.]
carbon disulphide: insoluble [Ref.]
chloroform: insoluble [Ref.]
diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]
water: soluble [Ref.]

    Dissociation:

    pKa (1) = 9.08 (20°C, water)
    pKa (2) = 11.82 (20°C, water)

    LD50 (mg/kg):

    120 (mice, subcutaneous)

    References:

    1. Armarego W. L. F. Purification of Laboratory Chemicals. - 7ed. - 2013. - pp. 275
    2. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-38
    3. Dictionary of organic compounds. - Vol. 3, naphthacarbazole - zygadenine. - М.: ИИЛ, 1949. - pp. 832
    4. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 368
    5. Полюдек-Фабини Р., Бейрих Т. Органический анализ. - Л.: Химия, 1981. - pp. 93 [Russian]
    6. Свойства органических соединений: Справочник. - Под ред. Потехина А.А. - Л.: Химия, 1984. - pp. 108-109 [Russian]
    7. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 616-617 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru