|
Product name |
Sodium carbonate |
|
Specification |
Pharmaceutical grade (USP,BP,EP,CP) |
|
Molecular formula |
Na2CO3 |
|
CAS |
497-19-8 |
|
H.S. CODE |
2836200000 |
|
Molecular weight |
105.99 |
|
Appearance |
White granule powder |
|
Package |
25KG Woven bags or fiber drums |
Property：
Water insoluble, white powder or small particles. Has the water absorbability, absorbs moisture in the air gradually becoming a hydrate. The relative density 2.532. 400 ℃ start decomposing. Melting point 851 ℃, soluble in water, soluble in alcohol.
Application：
Analytics reagents, such as make reference reagent, sample dissolution fire-resistant and precipitation agent, the slow granule, emission spectral analysis sample volatilize. Also used in the preparation of sodium salt, sodium glass and film print wash.
Test standard：
|
Test items |
Specification |
||
|
BP2015 |
USP35 |
CP2015 |
|
|
Appearance |
White granule powder |
White granule powder |
White granule powder |
|
Assay |
99.5~100.5% |
99.0~100.5% |
≥99.5% |
|
Appearance of solution |
Conform |
Conform |
Conform |
|
Alkali hydroxides and bicarbonates |
Conform |
|
|
|
Loss and drying |
≤1.0% |
|
≤2.0% |
|
Water |
|
≤0.5% |
|
|
Chloride |
≤0.0125% |
|
≤0.0125% |
|
Sulphate |
≤0.025% |
|
≤0.025% |
|
Arsenic |
≤0.0005% |
|
≤0.0005% |
|
Iron |
≤0.005% |
|
≤0.005% |
|
Heavy metals |
≤0.005% |
≤0.001% |
≤0.005% |
Storage：
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.
