Sodium Nitrite used in the enamel, glass industry, dye industry, medicine, agriculture as fertilizer. Sodium Nitrite1) purity:99%, 2) packing: ... for dyes.Sodium nitrate in the metallurgical industry as steel, aluminum alloy heat-treatment agent. Of sodium nitrate used in the machine the industrial ... by dry base) % ≥ 99.098.598.0Content of Sodium nitrite(calculated by dry base) % ≤ 0.801.001.90Content ...