Appearance White Powder Purity 99.5 %min Al 20ppm.max Ca&Mg 0.005%max Fe 0.001%max Chloride (Cl) 0.005%max Sulphate (SO4) 0.01%max Hg 2ppm.max Heavy metal (as Pb) 10ppm.max Arsenic (As) 2ppm.max PH (5% water solution) 7.5-9.0 we have pharmaceutical grade, food grade and industrial grade
pharmaceutical, food additive, petroleum,dyeing and printing auxiliary