Ethyl amyl ketone is a colorless liquid with amild, fruity odor. Molecular weight = 128.24; Boilingpoint = 157.2℃; Freezing/Melting point = - 56.7℃; Vaporpressure = 2 mmHg at 20℃; Flash point = 57℃ (oc). HazardIdentification (based on NFPA-704 M Rating System): Health0, Flammability 2, Reactivity 0. Insoluble in water