1.Sodium nitrite industry grade 2.high quality 3.98% Product Name:Sodium nitriteCategory:Inorganic chemical/ ... Formula:NaNO2Quality spec. Item Grade Best qualityFirst qualityQualifierSodium nitrite (dry basis), %, ≥ 99.0 98.5 98.0 Moisture, %, ≤ ... as mordant for textile dyeing, as metal thermal treatment agent, as electro-plating corrosion inhibitor etc. 98.0% Sodium Nitrite industry grade