Characters

性状

White granular crystals or a white crystalline powder透明或白色晶体状粉末

透明或白色晶体状粉末

White granular crystals白色结晶

Assay (Anhydrous basis)

含量                       %

≥98.0

99.2

Chloride

氯化物                     %

≤50ppm

＜50ppm

Sulphate

硫酸盐                     %

≤150ppm

＜150ppm

Iron

铁盐                       %

≤10ppm

＜10ppm

Oxalate

草酸盐                     %

            ≤400ppm

      ＜400ppm

Heavy metals

重金属                     %

 ＜10ppm

Arsenic

砷                        %

≤3ppm

＜3ppm

Conclusion

Meets the industrial grade

符合工业级标准