... .0 ° C, is 0.807 aldehyde relative density, 1.3560 refractive index, flash point 15 ~ 19 °Useage:Aliphatic aldehydes and ketones and ... boiling point 47.93 ° C, melting point - 81.0 ° C, refractive index, relative density 0.807 1.3560, flash point 15 ~ 19 ...