|
Product name
Ammonium chloride
Specification
Reagent grade
Molecular formula
NH4Cl
CAS
12125-02-9
H.S. CODE
2827109000
Molecular weight
53.49
Appearance
White crystal powder
Package
25KG woven bags or fiber drums
|
||||||||||||||||
|
|
|
Properties：
Colorless crystalline or white crystalloid powder. 337.8 1.53, relative density ℃ sublimation and decomposed into ammonia and hydrogen. Easily soluble in water, soluble in alcohol.
Application：
Analytics reagents, such as configuration ammonia chloride buffer solution. - as the supporting electrolyte electrochemical analysis. Used for emission spectrometry with arc stabilizer. Atomic absorption spectrometry with interference inhibitors.
Test standard：GB 6549-2011
|
Test items |
Specification |
|
|
AR grade |
CP grade |
|
|
Appearance |
White crystal powder |
White crystal powder |
|
Assay |
≥99.5% |
≥98.5% |
|
pH |
4.5~5.5 |
4.5~5.5 |
|
Appearance of solution |
Conform |
Conform |
|
Water insoluble |
≤0.005% |
≤0.01% |
|
Residue on ignition |
≤0.02% |
≤0.05% |
|
Sulfate |
≤0.005% |
≤0.005% |
|
Phosphate |
≤0.0005% |
≤0.001% |
|
Sodium |
≤0.005% |
- |
|
Magnesium |
≤0.001% |
≤0.002% |
|
Potassium |
≤0.005% |
- |
|
Calcium |
≤0.001% |
≤0.002% |
|
Iron |
≤0.0005% |
≤0.001% |
Storage：
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.
