Citric acid Monohydrate Citric acid Anhydrous Lemon acid
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Item |
Unit |
BP 2013 |
USP 36 |
FCC 8 |
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 |
% |
7.5-9.0 |
7.5-9.0 |
≤8.8 |
7.5-8.8 |
7.5-9.0 |
Light Transmittance |
% |
/ |
/ |
/ |
/ |
≥95 |
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 |
≤150 |
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 |
|
|
Lead |
ppm |
/ |
/ |
≤0.5 |
≤0.5 |
≤0.5 |
Aluminum |
ppm |
≤0.2 |
≤0.2 |
/ |
/ |
/ |
Bacterial Endotoxins |
IU/mg |
<0.5 |
Pass Test |
/ |
/ |
/ |
Water Insoluble Substances |
|
/ |
/ |
/ |
/ |
Filtration time not more than 1 min; Filter membrane basically doesn't change color; Visual mottled particles not more than 3. |
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