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Properties of substance:

4-hydroxybenzenesulfonic acid



skc-file

Group of substances:

organic

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

C6H6O4S

Structural formula as text:

HOC6H4SO3H

Molar/atomic mass: 174.17444

Solubility (g/100 g of solvent):

ethanol: soluble [Ref.]
water: soluble [Ref.]

    Dissociation:

    pKa (1) = 0.58 (25°C, water)
    pKa (2) = 8.7 (25°C, water)

    References:

    1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 3-288
    2. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 1052-1053 [Russian]
    3. Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 95 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru