技术规格说明书
产品名称
亚硫酸钠 puriss., meets analytical specification of Ph. Eur., BP, NF, anhydrous, 95.0-100.0% (iodometric)
产品编号
13471
产品品牌
sigald
化学文摘社编号
7757-83-7
分子量
126.04
Test皿 | 规格 |
|---|---|
| REDOX TITRATION | 95.0 - 100.0 % |
| REDOXTITRATION (METHOD) | Iodometric |
| APPEARANCE OF SOLUTION | Complying |
| RESIDUAL SOLVENTS | Complying |
| HEAVY METALS | ≤ 0.001 % (as Pb) |
| IRON | ≤ 0.001 % |
| SELENIUM | ≤ 0.001 % |
| ZINC | ≤ 0.001 % |
| CHLORIDE (CL) | ≤ 0.02 % |
| THIOSULFATE (S2O3) | ≤ 0.05 % |
| REMARKS | Identity, assay and impurities are complying to the monographs of the above mentioned pharmacopeias/codices |
| RECOMMENDED RETEST PERIOD | 24 Months |