1,Assay                                      98%min

2,Drying loss                               0.5%max

3,Heavy metal                             0.002%max

4,Chloride                                    0.05 max

5,Reduzate                                 0.5%max

6,Lead                                         0.001%

7,Solubility(1.0g, 10ml water)    clear

8,PH                                             6.5-7.8

9,Arsenic salt   g/g                      3max

 

 

Uses: This product is widely used in textile dyeing, printing and metal surface water treatment, chelating agent,steel surface cleaning agent, concrete addmixture industry or food fortidier.