Ferrous Sulphate Heptahydrate for water treatment

Detail,

purity	98%min
Iron II	19min
Pb	0.002%max
As	0.0002%max
color	light green

How to use in water treatment

1.first make it up to 5%-10% water solution , then used it , it most suit for PH value 9-11.

2.the dosage changed according to the turbidity degree of raw water , For example , usually the raw water turbidity degree is 100-500mg/L, it need input 1-2kgs ferrous sulphate heptahydrate chemicals.