Physical and chemical properties: Colorless to pale yellow, oily liquid with fat, meat-like aroma and creamy caramel flavor. With water and soluble in common organic solvents can. Slightly soluble in aliphatic hydrocarbons. Freezing point -44 ℃. Can occur hydrolysis, esterification, halogenation, condensation hydroformylation reaction. It is a high boiling point, solubility, strength, electrical properties and good stability of the solvent, the use of safe and convenient. Boiling point 204 ℃, refractive index nD20 1.04348.
Uses: As intermediates in organic synthesis for the preparation of α-pyrrolidone, N-methyl-2 - pyrrolidone, γ-hydroxybutyrate, sodium cyclopropylamine in the acetyl group γ-butyrolactone and the like. Can also be used as agricultural chemicals and polymer solvents and solvent dyes and dyeing. Widely used in oil refining, purification of acetylene, butadiene and aromatics extraction wells, industrial cleaning agents, pharmaceutical synthesis and other fields. Mainly in the field of medicine manufacturing cyclopropylamine as starting materials, and vitamin B1, in addition to γ-butyrolactone is also applicable to a dye, pigment intermediates, couplers electrolyte batteries and capacitors, an aqueous solution of sodium silicate gelling agent control to paint medicine and other industries. GBL is an important organic synthesis and excellent solvent. May also be used to extract the oil field agent. To the γ-butyrolactone as raw material, but also the production of spices, pharmaceutical intermediates, descaling agent.
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