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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):

C4H6O2

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/cm3)

Refractive index (nD):

1.4314 (20°C)

Vapour pressure (Torr):

12 (60°C)

Dipole moment (D):

1.79 (20°C)

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

161.1 (l)

LD50 (mg/kg):

1200 (rabbits, oral)
1000 (rats, oral)
1300 (mice, oral)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-25, 8-107
  2. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.2. - Л.: Химия, 1976. - pp. 19-20 [Russian]
  3. 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