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andrewsupply/Pure Ascorbic Acid/T/T,Western Union,MoneyGram/50-81-7
andrewsupply/Pure Ascorbic Acid/T/T,Western Union,MoneyGram/50-81-7
商品编号：
50-81-7
品牌：
andrewsupply
市场价：
¥0.00
美元价：
0.00
产地：
United States
公司：
andrewchemsupply
公司分类：
Pharmaceutical
联系Q Q：
3392242852
电话号码：
4000-520-616
电子邮箱：
info@ebiomall.com
商品介绍
Characteristics | White or almost white crystalline powder | Pass |
Identification | Positive reaction | Pass |
Melting Point | About 190°C | 191°C |
PH | 2.1-2.6 | 2.3 |
Clarity of solution | Clear | Pass |
Color of solution | ≤BY7 | |
Copper | ≤5ppm | <5ppm |
Heavy metals | ≤10ppm | <10ppm |
Iron | ≤2ppm | <2ppm |
Lead | ≤2ppm | <2ppm |
Arsenic | ≤3ppm | <3ppm |
Oxalic acid | ≤0.2% | <0.2% |
Sulphated Ashes | ≤0.1% | 0.03% |
Specific optical Rotation | +20.5°~ +21.5° | +21.1° |
Assay | 99.0%-100.5% | 99.9% |
Organic volatile impurities | Pass | Pass |
Residual solvents | Methanol: NMT 3000ppm | <3000ppm |
品牌介绍
品牌分类
Pharmaceutical
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