The nitrate ion is a polyatomic ion with the empirical formula NO3 and a molecular mass of 62.0049. It is the conjugate base of nitric acid, consisting of one central nitrogen atom surrounded by three identical oxygen atoms in a trigonal planar arrangement. The nitrate ion carries a formal charge of negative one, where each oxygen carries a -2/3 charge while the nitrogen carries a +1 charge, and is commonly used as an example of resonance.
Potassium Nitrate
Formula : KNO3 Appearance : White Crystalline Powder Assay : 99.00% Min M.W : 101.1 Chloride : 0.005% Sulphate : 0.002% PH : 6 to 7.5 Lead : Nil Iron : 0.002%
Sodium Nitrate (NaNo3)
CAS NO : 7631-99-4 Molecular Formula : NaNoз Molecular Weight : 85 Melting Point : 308°C Bulk Density : 1.43 g/cm3
SPECIFICATIONS
Appearance : White/Off White crystalline powder Purity : 99.0% w/w Min Sodium Nitrite : Nil Moisture : Nil Sulphates (So4) : Nil Chloride (Cl) : 0.15% pH of 10% ag. Solution : 6.5 – 9.0 Alkalinity as Na2Co :0.15% Max Loss on Drying : 1.00% w/w Max