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Properties of substance:

isophthalic acid

Group of substances:

organic

Physical appearance:

colorless needles crystals

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

C8H6O4

Structural formula as text:

C6H4(COOH)2

Molar/atomic mass: 166.1308

Melting point (°C):

348.5

Solubility (g/100 g of solvent):

ethanol: soluble [Ref.]
water: 0.013 (25°C) [Ref.]
water: 0.22 (100°C) [Ref.]

    Dissociation:

    pKa (1) = 3.62 (25°C, water)
    pKa (2) = 4.6 (25°C, water)

    LD50 (mg/kg):

    9580 (white mice, oral)
    10800 (rats, oral)

    References:

    1. Journal of Physical and Chemical Reference Data. - 2013. - Vol. 42, No. 3. - pp. 033103-151 - 033103-163
    2. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 572-574
    3. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 458
    4. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 694-695 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru