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Properties of substance:

2-methyl-2-propanol



skc-file

Synonyms:

tert-butanol

Group of substances:

organic

Physical appearance:

colorless rhombic crystals

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

C4H10O

Structural formula as text:

(CH3)3COH

CAS No: 75-65-0

Molar/atomic mass: 74.12199

Melting point (°C):

25.5

Boiling point (°C):

82.2

Decomposition temperature (°C):

500

Solubility (g/100 g of solvent):

diethyl ether: miscible [Ref.]
ethanol: miscible [Ref.]
water: miscible [Ref.]

Density:

0.7887 (20°C, g/cm3)

Refractive index (nD):

1.3954 (20°C)

    Dissociation:

    pKBH+ (1) = -3.8 (25°C, water)
    pKa (1) = 19 (20°C, water)

    Viscosity (mPa·s):

    33.16 (30°C)

    Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

    -359.2 (l)

    Standard molar entropy S0 (298.15 K, J/(mol·K)):

    193.3 (l)

    Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

    218.6 (l)

    Flash point (°C):

    10

    Autoignition temperature (°C):

    480

    Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

    -312.5 (g)

    Standard molar entropy S0 (298.15 K, J/(mol·K)):

    326.7 (g)

    Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

    113.6 (g)

    LD50 (mg/kg):

    3559 (rabbits, oral)
    3500 (rats, oral)
    1538 (mice, intravenous)
    933 (mice, intraperitoneal)

    References:

    1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-27
    2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 134 [Russian]
    3. Реутов О.А., Курц А.Л., Бутин К.П. Органическая химия. - 2-е изд., Ч.1. - М.: Бином. Лаборатория знаний, 2005. - pp. 222 [Russian]
    4. Свойства органических соединений: Справочник. - Под ред. Потехина А.А. - Л.: Химия, 1984. - pp. 320-321 [Russian]
    5. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 155 [Russian]
    6. Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 337 [Russian]
    7. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 88 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru