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Properties of substance:
methacrylic acid
Group of substances:
organic
Physical appearance:
colorless liquid
Empirical formula (Hill's system for organic substances):
C
4
H
6
O
2
Structural formula as text:
CH2=C(CH3)COOH
Molar/atomic mass: 86.089
Melting point (°C):
16
Boiling point (°C):
163
Solubility (g/100 g of solvent):
diethyl ether
: miscible [
Ref.
]
ethanol
: miscible [
Ref.
]
water
: 9.8 (20°C) [
Ref.
]
water
: very soluble (100°C) [
Ref.
]
Density:
1.0153 (20°C, g/cm
3
)
Reactions:
Yeild 65%. [
Ref.1
]
C
6
H
5
Br + CH
2
=C(CH
3
)COOH + (CH
3
CH
2
CH
2
CH
2
)
3
N → C
6
H
5
CH=C(CH
3
)COOH + (CH
3
CH
2
CH
2
CH
2
)
3
NHBr
Refractive index (n
D
):
1.4314 (20°C)
Vapour pressure (Torr):
12 (60°C)
Dipole moment (D):
1.79 (20°C)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
161.1 (l)
LD
50
(mg/kg):
1200 (rabbits, oral)
1000 (rats, oral)
1300 (mice, oral)
References:
CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-25, 8-107
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.2. - Л.: Химия, 1976. - pp. 19-20 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 159 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru
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