Calcium Hydroxylamite, Ca(ONH₂)₂

Calcium Hydroxylamite, Ca(ONH₂)₂, is formed with the evolution of a gas when calcium filings are treated with anhydrous hydroxylamine at 5° C. An extremely explosive white salt separates. On washing with absolute alcohol and drying in vacuo over sulphuric acid, a white amorphous powder, detonating at 180° C., is obtained. Water hydrolyses it, forming calcium hydroxide and hydroxyiamine.

By digesting calcium hydroxide or carbide with a methyl alcoholic solution of hydroxyiamine a basic compound, CaOH.ONH₂, is formed. It is a white substance decomposed by water and acids.