ammonium chloride industrial grade 99.3%min 1) Purity: 99.5% 2) Used in the battery, electroplating, dyeing & textile, etc. ... with the standard: GB2946-92Item1st gradeNH4CL content (on dry basis),%≥99.5Moisture content,%≤0.7Remnant of combustion%≤0.4Iron(Fe),% ≤0 ... Ph) content,%0.0005Sulphate content,% ≤0.02PH Value(200g/L,25)4.0-5.8We promise to offer you the product ...