English name: PEG200, Polyethylene glycol 200 Other names: Polyoxyethylene 200 CAS number: 25322-68-3 Molecular formula: HO (CH2CH2O) nH Level: Color-solid average molecular weight: 190.0 ～ 210.0 Relative polarity: ++++ Properties: Colorless viscous liquid. There is a slight special smell. Slightly hygroscopic. Soluble in water and. The relative density (d2525) is 1.127. Freezing point -15 ℃. Viscosity (99 ℃) 4.3μm2 / s. Flash point (open cup) 177 ℃ Application: Biochemical research. Gas chromatographic fixative (maximum operating temperature 120 ℃, solvent chloroform, dichloromethane), separation and analysis of oxygen-containing compounds such as alcohol, ketone, aldehyde, water in polytetrafluoroethylene, fatty amine, volatile oil. And is widely used as a modifier of the carrier and the inner wall of the capillary column. Organic Synthesis. Save: RT
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