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Properties of substance:
phenolphthalein
skc-file
Group of substances:
organic
Physical appearance:
colorless rhombic crystals
Empirical formula (Hill's system for organic substances):
C
2
0
H
1
4
O
4
Molar/atomic mass: 318.32276
Melting point (°C):
261
CAS №: 77-09-8
Solubility (g/100 g of solvent):
acetic acid
: 0.44 (25°C) [
Ref.
]
acetone
: 26.4 (18°C) [
Ref.
]
acetone
: 28.01 (25°C) [
Ref.
]
benzene
: 0.16 (18°C) [
Ref.
]
benzene
: 0.0031 (25°C) [
Ref.
]
carbon disulphide
: 0.18 (18°C) [
Ref.
]
carbon tetrachloride
: 0.0013 (25°C) [
Ref.
]
chloroform
: 3.06 (18°C) [
Ref.
]
chloroform
: 0.006 (25°C) [
Ref.
]
diethyl ether
: 8.34 (20°C) [
Ref.
]
diethyl ether
: 0.48 (25°C) [
Ref.
]
ethanol
: 26.5 (20°C) [
Ref.
]
ethanol 41.5%
: 0.78 (25°C) [
Ref.
]
ethanol 92.4%
: 10.37 (25°C) [
Ref.
]
ethanol 99.6%
: 9.2 (25°C) [
Ref.
]
ethyl acetate
: 6.56 (18°C) [
Ref.
]
ethylene glycol
: 2.14 (25°C) [
Ref.
]
glycerol 95.2%
: 0.053 (25°C) [
Ref.
]
kerosene: 0.0019 (25°C) [
Ref.
]
methanol
: 14.2 (18°C) [
Ref.
]
methanol
: 9.17 (25°C) [
Ref.
]
nitrobenzene
: 4.41 (18°C) [
Ref.
]
petroleum ether: 0.017 (25°C) [
Ref.
]
pyridine
: 769 (room temperature) [
Ref.
]
pyridine
: 152.29 (25°C) [
Ref.
]
quinoline
: 0.32 (20°C) [
Ref.
]
toluene
: 0.61 (18°C) [
Ref.
]
water
: 0.0002 (25°C) [
Ref.
]
xylene: 0.18 (18°C) [
Ref.
]
Numerical data:
Year of discovery: 1871
Density:
1.277 (32°C, g/cm
3
)
Reactions of synthesis:
Yeild 93%. [
Ref.1
,
Ref.2
,
Ref.3
,
Ref.4
,
Ref.5
,
Ref.6
,
Ref.7
,
Ref.8
,
Ref.9
,
Ref.10
]
Dissociation:
pK
a
(1) = 9.4 (25°C, water)
References:
CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-446
Dictionary of organic compounds. - Vol. 3, naphthacarbazole - zygadenine. - М.: ИИЛ, 1949. - pp. 372
The Merck Index 11th ed., Merck & Company, 1989. - pp. 1150-1151
Беликов В.Г. Учебное пособие по фармацевтической химии. - М.: Медицина, 1979. - pp. 160 [Russian]
Девяткин В.В., Ляхова Ю.М. Химия для любознательных, или о чем не узнаешь на уроке. - Ярославль: Академия Холдинг, 2000. - pp. 53 [Russian]
Индикаторы. - Т.1. - М.: Мир, 1976. - pp. 135-136 [Russian]
Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1249, 1371, 1526, 1585 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 1052-1053 [Russian]
Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 74 [Russian]
Энциклопедия для детей. - Т.17: Химия. - М.: Аванта+, 2004. - pp. 163 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru