数据库错误: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1]
SELECT * FROM `mycn_models_set` WHERE channelId =
CAS number:
Molecular formula:
molecular weight:
Chemical structure:
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 |