... %min with anti-caking agent 25kgs pp/pe bag(25mt/20') un no.3219 hazard class: 5.1 prompt shipment Sodium Nitrite ... dry basis),%,0.801.001.90white or light yellow prismatic crystal,density 2.168,melting point 271 , easy dissolve in water ... pre-strong agent,antifreezer etc,medicine -making and chemical industry. sodium nitrite