... 99.3%min with anti-caking agent 25kgs pp/pe bag (25mt/20') hazard class: 5.1 un no. 1498 china origin Sodium Nitrate ... heated to 529C.sodium nitrate is Oxidant ,can inflammation and explosive while mixed with orgnic compound,Sulphur sodium acid sulfite etc ... .UseFor chemical,glass,explosive,fireworks,dye, ...