Introduction Product Name: Sodium Nitrate Apperance: Crystal and Granular CAS No.: 7631-99-4 EINECS No.: 231-554-3 Formula: NaNO3 Formula Weight: 84.99 Assay(NaNO3) 99.3% Moisture 1.8% Application NaNO3 Sodium Nitrate is mainly used as corrosion inhibitor and inhibitor of boiler metal embrittlement in water treatment field.Sodium nitrate was added into the low pressure boiler system to inhibit the corrosion of water side metal and prevent metal material embrittlement. When sodium nitrate is used as an inhibitor of metal embrittlement, it should be mixed with sodium hydroxide in a certain proportion.