Sodium nitrate

Sodium nitrate Identification Name Sodium nitrate Molecular Formula NaNO3 Molecular Weight 84.99 CAS Registry Number 7631-99-4 EINECS 231-554-3 Properties Density 2.26 Melting point 306 ºC Boiling point 380 ºC Water solubility 900 g/L (20 ºC) Safety Data Hazard Symbols O;Xn Details Risk Codes R22;R36/37/38;R8 Details Safety Description S17;S26;S37/39 Details Appearance: White or light yellow Fine Crystal （for industrial） Specification: Item Quality Index High-Class First-Class Qualified-Class Purity 99.5% min 99.3% min 98.5% min Moisture : 1.0% max 1.5% max 2.0% max Chlorides ( As NaCL ) 0.15% max 0.25% max ---- Sodium nitrite 0.01% max 0.02% max 0.15% max Water insolubles 0.03% max 0.05% max ----- Sodium Carbonate 0.05% 0.1% max ----- Iron (Fe) : 0.005% ----- ----