Dear friend, We can supply Sodium Nitrate and Sodium Nitrite Sodium Nitrate: CAS No.:7631-99-4 Molecular formula:NaNO3 Appearance ... used in manufacture of glass antifoamer, fertilizer, dyes and potassium nitrate, also in pharmaceuticals, oxidant, metal hot-treating, food preserving. ... and offer best price for you. Sodium Nitrite CAS No.:7632-00-0 Molecular formula:NaNO2 Appearance ...