Dimethyl sulfoxide

Description

CERTIFICATE OF ANALYSIS
CommodityDimethyl sulfoxideStandardGBT21395-2008
Batch number20230701Inspection date2023.07.01
ItemsIndexResult
Superior Grade
AppearanceColorless transparent liquidMatch the norm
Purity, %≥99.999.93
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)1.4778~1.47901.4779
Moisture,%≤0.05<0.05
PH value6~87.0
Test ConclusionSuperior-grade


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