Sodium Hexametaphosphate

We are offering sodium hexametaphosphate. Skype: maryzhao818 mail: maryzhao818(at)yahoo(dot)cn, maryzhao818(at)hotmail(dot)com indexes industry grade food grade total phosphates(as p2o5)% ≥ 68 68 inactive phosphates(as p2o5)% ≤ 7.5 7.5 iron (fe)% ≤ 0.05 0.005 ph value 5.8-7.3 5.8-6.5 heavy metals(as pb)% ≤ 0.001 arsenic (as)% ≤ 0.0003 fluoride(as f)% ≤ 0.003 water insoluble matter%≤ 0.1 0.06.