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Properties of substance:
p-toluenesulfonic acid
Group of substances:
organic
Physical appearance:
white monoclinic crystals
Empirical formula (Hill's system for organic substances):
C
7
H
8
O
3
S
Structural formula as text:
CH3C6H4SO3H
Molar/atomic mass: 172.2
Melting point (°C):
106-107
CAS №: 105-15-4
Solubility (g/100 g of solvent):
acetonitrile
: soluble [
Ref.
]
diethyl ether
: soluble [
Ref.
]
ethanol
: soluble [
Ref.
]
water
: 67 (20°C) [
Ref.
]
Hygroscopic:
yes
Vapour pressure (Torr):
20 (140°C)
Dissociation:
pK
a
(1) = 0.7 (25°C, water)
LD
50
(mg/kg):
2480 (rats, oral)
735 (, oral)
References:
Dictionary of organic compounds. - Vol. 3, naphthacarbazole - zygadenine. - М.: ИИЛ, 1949. - pp. 775
Lange's handbook of chemistry. - 16 ed. - McGraw Hill, 2005. - pp. 2.240
Stahl P.H., Wermuth C.G. Handbook of Pharmaceutical Salts: Properties, Selection, and Use. - Wiley-VCH, 2002. - pp. 309-310
Краткая химическая энциклопедия. - Т. 5: Т-Я. - М.: Советская энциклопедия, 1967. - pp. 212 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 1006-1007 [Russian]
Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 94 [Russian]
Токсикологический вестник. - 2003. - №6. - pp. 54 [Russian]
Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 606-607 [Russian]
Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 584 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru