丙酸酐 Propionic anhydride

物理描述 Physical Description

Propionic anhydride is a colorless liquid with a pungent odor. Flash point 165°F. Density 8.4 lb /gal. Corrosive to metals and tissue.

颜色/状态 Color Form

Colorless liquid

气味 Odor

Very rancid odor

沸点 Boiling Point

170.0 °C

熔点 Melting Point

-45.0 °C

闪点 Flash Point

145 °F (63 °C) (Closed Cup)

溶解度 Solubility

In water, 1.02X10+5 mg/L at 25 °C (est)

密度 Density

1.011 g/cu cm at 20 °C

蒸气密度 Vapor Density

4.49 (Air = 1)

蒸汽压力 Vapor Pressure

1.36 mm Hg at 25 °C

自燃温度 Autoignition Temperature

285 °C (545 °F)

分解 Decomposition

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

粘度 Viscosity

1.144 cP at 20 °C; 0.978 cP at 30 °C; 0853 cP at 40 °C; 0.7511 cP at 50 °C

折光率 Refractive Index

Index of refraction: 1.4038 at 20 °C/D ; 1.4041 at 17 °C/D

其他实验性质 Other Experimental Properties

Specific gravity: 1.0336 at 0 °C/4 °C; 1.0169 at 15 °C/4 °C; 1.0125 at 20 °C/4 °C; 0.98974 at 40 °C/4 °C; 0.97913 at 50 °C/4 °C

辛醇/水分配系数 LogP

log Kow = 0.40 (est)