CAS No.: | 67-68-5 |
---|---|
Formula: | C2h6OS |
EINECS: | 200-664-3 |
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CERTIFICATE OF ANALYSIS | |||
Commodity | Dimethyl sulfoxide | Standard | GBT21395-2008 |
Batch number | 20210701 | Inspection date | 2021.07.01 |
Items |
Index | Result |
|
Superior Grade | |||
Appearance | Colorless transparent liquid | Match the norm | |
Purity, % | ≥99.9 | 99.93 | |
Crystallizing point ºC | ≥18.2 | >18.2 | |
Acid number , mg/g (caiculated by KOH) | ≤ 0.03 | <0.03 | |
Transmittance(400nm),% | ≥96 | >96 | |
Refractive index(20ºC) | 1.4778~1.4790 | 1.4779 | |
Moisture,% | ≤0.05 | <0.05 | |
PH value | 6~8 | 7.0 | |
Test Conclusion |
Superior-grade |