Purposes: the use of industrial-grade ammonium chloride is mainly used for batteries, electroplating, dyeing, casting, medicine, APPEARANCE: ... ):≥99.5%MOISTURE: ≤0.4%Fe CONTENT: ≤0.001%REMNANT OF COMBUSTION:≤0.4%HEAVY METAL(AS Pb)CONTENT:≤ 0.0005 ... (200g/L,25):4.0-5.8Purposes: the use of industrial-grade ammonium chloride is mainly used for batteries, electroplating, dyeing, casting, medicine ...