Acetaldoxime

 There are two crystal forms, α-type melting point is 46.5°C, β-type melting point is 12°C. The relative density is 0.966, the boiling point is 114.5°C, and the refractive index is 1.415. It can be decomposed into acetaldehyde and hydroxylamine by hydrochloric acid. Easily soluble in water, alcohol and ether. Derived from the reaction of hydroxylamine and acetaldehyde aqueous solution. Used in organic synthesis.