英文名称：Hypophosphorous acidCAS号：6303-21-5分子式：HO2P分子量：63.980501EINECS号：228-601-5

熔点 -25 °C沸点 108 °C (759.8513 mmHg)密度 1.206 g/mL at 20 °C(lit.)
蒸气压<17 mmHg ( 20 °C)酸度系数(pKa)pK1 1.1.形态hygroscopic crystals or colorless oily liquid颜色Colorless水溶解性 SOLUBLEMerck 13,4894稳定性Stable. Incompatible with strong bases. Reacts violently with oxidizing agents, strong bases, mercury (II) nitrate and mercury (II) oxide. Do not heat above 100 C.

危险性符号(GHS)
GHS05警示词Danger危险性描述H318-H314防范说明P280-P305+P351+P338-P310-P260h-P301+P330+P331-P303+P361+P353-P405-P501a危险品标志 C危险类别码 34安全说明 26-36/37/39-45危险品运输编号 UN 3264 8/PG 3
WGK Germany 1
RTECS号SZ6400000
TSCA YesHazardClass 8PackingGroup II海关编码 28111990