... class: 5.1 un no. 1498 china origin Sodium Nitrate Property colorless hexagonak system crystal,density 2.257,melting ... tempreture 380C and decompisited quickly when heated to 529C.sodium nitrate is Oxidant ,can inflammation and explosive while mixed ... orgnic compound,Sulphur sodium acid sulfite etc.UseFor chemical,glass,explosive,fireworks,dye,metallurgy, machinery,enamel industry,meat antiseptics, ...