Sell Citric Acid CAS NO.77-92-9
China [CN] |
CAS NO.
|
5949-29-1
|
 |
|
EINECS NO.
|
201-069-1
|
|
|
FORMULA
|
HOC(COOH)(CH2COOH)2·H2O
|
|
|
MOL WT.
|
210.14
|
|
|
H.S. CODE
|
2918.14.0000
|
Citric Acid Anhydrous Specifications
|
ITEM |
STANDARD |
|
Name |
Citric Acid Anhydrous |
|
CAS No. |
77-92-9 |
|
Chemical formula |
C6H8O7 |
|
Specification |
BP 98 / USP 24 |
|
Packing |
In 25kg paper bags |
|
Functional use |
Acidity regulator |
|
Items |
Specifications |
|
Appearance |
White crystals or crystalline powder |
|
Identification |
Conforms |
|
Clarity and color of Solution |
Conforms |
|
Assay |
99.5 - 101.0% |
|
Chloride(Cl) |
50 ppm max |
|
Sulfate(SO42-) |
150 ppm max |
|
Loss on drying |
1% max |
|
Heavy metals(Pb) |
10 ppm max |
|
Barium |
Conforms |
|
Iron |
50 ppm max |
|
Calcium |
200 ppm max |
|
Oxalate |
350 ppm max |
|
Sulfated ash |
0.10% max |
|
Readily carbonisable substances |
Conforms |
Citric Acid Monohydrate Specifications
|
Items |
Standards |
||
|
Description |
Colorless crystals or white crystalline powders |
||
|
Clarity & Clolor of Solution |
20% water solution clarifying |
||
|
Assay |
99.5%-100.5% |
||
|
Moisture |
7.5-8.8 |
||
|
Sulphated Ash |
≤ 0.05% |
||
|
Light Transmittance |
≥97.0% |
||
|
Sulpahte |
≤150ppm |
||
|
Chloride |
≤50ppm |
||
|
Calcium |
≤75ppm |
||
|
Heavy Metal |
≤5ppm |
||
|
Iron |
≤5ppm |
||
|
Oxalate |
≤100ppm |
||
|
Readily Carbonizable |
Not darker than standard |
||
|
Aluminium |
≤0.2ppm |
||
|
Arsenic |
≤1ppm |
||
|
Mercury |
≤1ppm |
||
|
Lead |
≤0.5ppm |
||
|
Endotoxin of Germ |
≤0.5IU/Mg |
||
|
Tridodecylamine |
≤0.1ppm |
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