... and phosphate(P2O5),% 46.0-52.046.0-52.0Manganese(Mn),% ≥14.514.0Iron (Fe),% ≤0.20.5Sulfate (SO4) ,% ≤ 0.050.07Total acidity titer ... insoluble substance ,% ≤3.06.0Heats up the decrement,% ≤19.019.0 Contact: Du changhongChongqing Hua'nan Inorganic Salt Chemical Co., Ltd ... .Tel: +86-23-62312922 Fax: +86-23-62312922 Mobile phone:+86-15823820774 Zip:400063Factory Add: 10 Zhongyaocun, Jiguanshi, Nan ...