Item | Standard（BP98） | ||||||
Definition | Complies with the test | ||||||
Characters | A white, crystalline powder, colorless crystals or graniles | ||||||
Identification | Complies with the test | ||||||
Assay | 99.5%~100.5% | ||||||
Loss on drying | ≤0.5% | ||||||
Resfily carbonisable sucbstances | Pass the test | ||||||
Sulfate Ash | ≤0.1% | ||||||
Iron | ≤50ppm | ||||||
Chloride | ≤50ppm | ||||||
Oxalate | ≤300ppm | ||||||
Sulphate | ≤150ppm | ||||||
Heavy metals | ≤10ppm | ||||||
Arsenic | ≤4ppm | ||||||
Calcium | ≤200ppm | ||||||
Barium | Pass the test | ||||||
Tridodecylamine | ≤0.1ppm | ||||||
