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Properties of substance:

1-naphthol

Synonyms:

α-naphthol

Group of substances:

organic

Physical appearance:

yellow monoclinic crystals

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

C10H8O

Structural formula as text:

C10H7OH

Molar/atomic mass: 144.17

Melting point (°C):

96.1

Boiling point (°C):

280

Solubility (g/100 g of solvent):

acetone: soluble [Ref.]
benzene: soluble [Ref.]
carbon tetrachloride: sparingly soluble [Ref.]
chloroform: soluble [Ref.]
diethyl ether: very soluble [Ref.]
ethanol: very soluble [Ref.]
water: 0.0866 (24°C) [Ref.]
water: 0.136 (30°C) [Ref.]
water: 0.31 (50°C) [Ref.]

Density:

1.224 (4°C, g/cm3)
1.09539 (39°C, g/cm3)
1.099 (99°C, g/cm3)

Refractive index (nD):

1.6224 (99°C)

    Dissociation:

    pKa (1) = 9.85 (20°C, water)

    Dipole moment (D):

    1 (20°C)

    Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

    23.49

    Heat of combustion (kJ/mol):

    4959.7

    LD50 (mg/kg):

    275 (white mice, )

    References:

    1. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 635-636
    2. Альберт А., Сержент Е. Константы ионизации кислот и оснований. - М.-Л.: Химия, 1964. - pp. 126 [Russian]
    3. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 164 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru