性质：白色颗粒或粉末。溶于水；微溶于乙醇。有氧化性。与有机物 混合时自燃而爆炸，遇水、受潮、受高温都能引起爆炸。相对密度：2.986，熔点：570。C；沸点：645。C。 Properties: white granule or powder. Dissolved in the water, rare dissolved in alcohol, it is oxid, Contact with organic compound,water will set off fire or bomb.density:2.986， Melting point: 450℃，boiling point:645℃。 用途：制作烟花爆竹、颜料沉淀剂、海陆交通信号、火柴。 Use: Mainly used in Mainly applied to produce red fireworks, signal flare, optical glass, radio tube cathode materials and also used in medical industry.