... service Fast delivery Manufacturer sodium nitrite 98.5% 99%Appearance:glanular,Colorless hyxagram crystal,gey or light yellow is ... allowable. ItemBest QualityFirst QualitySodium Nitirte content % ,≥99.599.3Moisture % ,≤1 ... used in glass industry, dye industry,medicine and fertilizers etc. sodium nitrite 98.5% 99%