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Ascorbic Acid Fine Powder (325mesh)

CAS number:

Molecular formula:

molecular weight:

Chemical structure:

Details

Product name:    
Ascorbic acid 325 mesh
Expiry Date: 
One years
Inspection Standard: 
BP2016/USP39
Tests
Standards
Results
Characteristics
White or almost white crystalline powder or colourless crystals
Pass
Identification
Positive reaction
Pass
Melting point
About 190℃
190℃
Specific rotation
+20.5°~+21.5°
+21.1°
Ph
2.1~2.6
2.4
Residue on ignition
≤0.1%
0.04%
Assay
99.0%~100.5%
99.7%
Heavy metals
≤10ppm
<10ppm
Clarity of solution
Clear
Pass
Color of solution
≤BY7
<BY7
Impurity E
≤0.2%
<0.2%
Copper
≤5ppm
<5ppm
Iron
≤2ppm
<2ppm
Particle size
Not less than 80% pass through 325 mesh
90.89%
Conclusion : The above product conforms with BP2016/USP39 standard