甲酸甲酯 Methyl formate

物理描述 Physical Description

Methyl formate appears as a clear colorless liquid with an agreeable odor. Flash point -27°F. Less dense than water Vapors heavier than air.

颜色/状态 Color Form

Colorless liquid [Note: A gas above 89 degrees F].

气味 Odor

Agreeable

沸点 Boiling Point

31.7 °C

熔点 Melting Point

-99.0 °C

闪点 Flash Point

-2 °F (-19 °C) (Closed Cup)

溶解度 Solubility

28.35 kJ/mol at 25 °C

密度 Density

0.987 at 15 °C/15 °C

蒸气密度 Vapor Density

2.07 (NTP, 1992) (Relative to Air)

蒸汽压力 Vapor Pressure

585.7 mm Hg at 25 °C /Extrapolated/

亨利常数 Henrys Law Constant

2.23e-04 atm-m3/mole

自燃温度 Autoignition Temperature

840 °F (449 °C)

分解 Decomposition

When heated to decomposition it emits acrid smoke and irritating fumes.

粘度 Viscosity

0.325 mPa-s at 25 °C

燃烧热 Heat Of Combustion

972.6 kJ/mol at 25 °C

汽化热 Heat Of Vaporization

28.35 kJ/mol at 25 °C

表面张力 Surface Tension

0.024 N/m at 25 °C

电离电位 Ionization Potential

10.82 eV

气味阈值 Odor Threshold

500 mg/cu m (Odor low); 6875 mg/cu m (Odor high)

折光率 Refractive Index

Index of refraction = 1.3433 at 20 °C/D

保留指数 Kovats Retention Index

386;386;380;386;418.7;386;407;407

其他实验性质 Other Experimental Properties

Heat of formation = -386.1 kJ/mol at 25 °C; heat capacity = 119.1 J/(mol-K) at 25 °C

辛醇/水分配系数 LogP

0.03 (LogP)

辛醇/空气分配系数 Logkoa

1.75 (Octanol-Air partition coefficient)

大气OH速率常数 Atmospheric Oh Rate Constant

2.27e-13 cm3/molecule*sec