2, 3-butyl glycol purposes and synthesis method

Chemical properties

colorless crystalline solid or viscous liquid. Melting point 23 °C-27, boiling point 179-182 °C, relative density 1.045 (20/20 °C), the refractive indexes, 1.438. The flash point of 85 °C, with water immiscible, soluble in and ether. Has hygroscopic.
Use

2, 3-butyl glycol with sulfuric acid as catalyst, in the 140-150 °C and acetic acid reaction 2 h, generate 2, 3-2 butyl glycol acid ester may be added to the cream, also can be used as moisture absorption agents, plasticizer and coupling agent. 2, 3-butyl glycol is also used as a solvent and synthetic resin materials.
Use for the preparation of resin and used as a solvent, etc
Production method

 to sugar, molasses, malt plasma or the mother liquor alcohol as raw materials, the method, the fermentation. In carbohydrate fermentation alcohol and system of vinegar, one byproduct acetaldehyde also can be in yeast under the role of generation 2, 3-butyl glycol.
Category flammable liquid
Grading low toxicity
Acute toxicity oral-rats LD50:5462 mg/kg
Combustibility hazard properties meet flame and high temperature, strong oxidizer flammable; Combustion emissions stimulation of smoke
Storage and transportation characteristics

warehouse ventilation dry at low temperature
Fire extinguishing chemical foam, dry powder, carbon dioxide, mist water, sand