English name: 1,2-Propanediol; 1,2-Dihydroxypropane; Methylethylene glycol; Methyl glycol; Propylene glycol
Other names: 1,2-dihydroxypropane; methyl glycol; propylene glycol
CAS number: 57-55-6
C3H8O2 = 76.09
Level: GCS
Properties: colorless viscous liquid. Slightly spicy. Easy to absorb moisture. It is stable under normal conditions, but it tends to form propionaldehyde, lactic acid, pyruvic acid and acetic acid at high temperatures. Miscible with water, acetone and chloroform, soluble in ether. The relative density (d254) is 1.036. Freezing point -59 ℃. Boiling point is 188.2 ℃. Refractive index (n27D) 1.4293. Flash point (open cup) 99 ℃. LD50 (rat, oral) 25ml / kg.
Uses: biochemical research. Solvent. Organic Synthesis. Antifreeze. Plasticizer. Fungicide. Gas chromatography analysis standard. Gas chromatographic stationary solution (maximum use temperature 150 ℃, solvent is chloroform), separate and analyze alcohol, ester and ketone
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