Item | Unit | BP 2009 | USP 32 | FCC 6 | E 330 | GB1987-2007 | ||||||
Characters | White Crystalline Powders,Colorless Crystals or Granules | |||||||||||
Identification | Pass Test | |||||||||||
Color & Clarity of Solution | Pass Test | Pass Test | / | Pass Test | / | |||||||
Assay | % | 99.5-100.5 | 99.5-100.5 | |||||||||
Water | % | ≤1.0 | ≤1.0 | ≤0.5 | ≤0.2 | ≤0.5 | ||||||
Light Transmittance | % | / | / | / | / | ≥96.0 | ||||||
Calcium | ppm | / | / | / | ≤75 | ≤200 | ||||||
Iron | ppm | / | / | / | ≤5 | ≤5 | ||||||
Arsenic | ppm | / | / | / | ≤1 | ≤1 | ||||||
Mercury | ppm | / | / | / | ≤1 | / | ||||||
Heavy Metals | ppm | ≤10 | ≤10 | / | ≤5 | / | ||||||
Oxalate | ppm | ≤360 | ≤360 | Pass Test | ≤100 | ≤100 | ||||||
Chloride | ppm | / | / | / | / | ≤50 | ||||||
Sulphate | ppm | ≤150 | ≤150 | / | ≤150 | ≤100 | ||||||
Readily Carbonisable Substances | Not Darker than Standard | Not Darker than Standard | Pass Test | Pass Test | ≤1.0 | |||||||
Sulphated Ash | % | ≤0.1 | ≤0.1 | ≤0.05 | ≤0.05 | ≤0.05 | ||||||
Volatile Organic Impurities | / | / | Pass Test | |||||||||
Tridodecylamine | mg/kg | / | / | ≤0.1 |
Citric acid anhydrous
1..BP2009/USP32/FCC6/E330/GB1987-2007
2..Cas no.:77-92-9
3.Assay: 99.5%-100.5%