... :231-555-9UN:1500Molecular Formula:NaNO2Quality spec.Item Grade Best qualityFirst qualityQualifierSodium nitrite (dry basis), %, ≥ 99. ... 2.168, odorless with slight salty taste, easily soluble in water, m.p.: 271oC, decomposition temperature: 320oCMolecular Formula ... as mordant for textile dyeing, as metal thermal treatment agent, as electro-plating corrosion inhibitor etc. sodium nitrite made in china