Cas号110-62-3分子式C5H10O；CH3CH2CH2CH2CHO分子量86.13别名戊醛外观Appearance无色透明至淡***液体纯度purity>99%(GC)红外光谱鉴别Infraredspectrometry和对照匹配熔点Meltingpoint184°C-189°C折光率Refractiveindexn20/D1.3900-1.3950密度Specificgr***ity(25°C)0.805-0.809酸价Acidvalue<5mgKOH/g)