1,1'-Oxydi-2-propanol (1,1'-Oxydi-2-propanol)

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1,1'-Oxydi-2-propanol

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1,1'-Oxydi-2-propanol
Dipropylene Glycol

110-98-5

C6H14O3

134.174

2905199090

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Nature Description

Colorless slightly viscous liquid. Boiling point 233 ℃, relative density 1.0252(20/20 ℃), refractive index 1.439(25℃), flash point 137 ℃. Soluble in water and toluene.

232oC

121oC

Product Applications

Used as cellulose nitrate solvent and organic synthesis Intermediate; Mainly used as solvent for cellulose acetate, cellulose nitrate, shellac varnish and castor oil.;

Production method

It is obtained by condensation of 1,2-propylene glycol and propylene oxide. The condensation reaction between 1,2-propylene glycol and propylene oxide is carried out under the action of 85 sulfuric acid. The reaction solution is neutralized with sodium hydroxide solution, filtered, distilled under reduced pressure, and then rectified under normal pressure. The fraction of 229-233 ℃ is collected, which means dipropylene glycol. Raw material consumption quota: Propylene glycol 1300 kg/t; Propylene oxide 1500 kg/t; Sulfuric acid (98)100 kg/t; Caustic soda (95)100 kg/t.