gamma-butyrolactone

Product Details

CasNo： 96-48-0

MF： C₄H₆O₂

Appearance： liquid

Delivery Time： 15 days

Packing： 1000kg IBC drum

Purity： 99%

• Basic Information1
  • Chemical Formula: C₄H₆O₂
  • Molecular Weight: 86.089
  • CAS Number: 96-48-0
  • EINECS Number: 202-509-5
• Physical and Chemical Properties
  • Appearance: Colorless oily liquid with a slight ketone - like odor.
  • Density: 1.12g/cm³
  • Melting Point: -44℃
  • Boiling Point: 206℃
  • Flash Point: 99.2℃ (open - cup)
  • Saturated Vapor Pressure: 2.0kPa (20℃)
  • Critical Temperature: 457.8℃
  • Critical Pressure: 5.13MPa
  • Upper Explosive Limit: 16% (V/V)
  • Lower Explosive Limit: 1.4% (V/V)
  • Refractive Index: 1.4348 (25℃)
  • Solubility: Miscible with water, and soluble in organic solvents such as methanol, ethanol, ether and benzene.
  • Chemical Properties: Stable in neutral medium, easily undergoing reversible hydrolysis in hot alkali. When the pH returns to neutral, the lactone is formed again. Hydrolysis is slower in acidic medium.
• Uses
  • Solvent: Due to its high boiling point, strong solubility, good electrical properties and stability, it is widely used as an organic solvent, extractant and absorbent. It can also be used as a battery electrolyte to replace strongly corrosive acid solutions.
  • Other Fields: It is also used in pesticides, herbicides, plant growth regulators, rubber additives and other aspects.
  Pharmaceutical Field: It is the starting material for many pharmaceutical products, and can be used to synthesize pyrrolidone - series products. It is also an intermediate for synthesizing ciprofloxacin, interferon, vitamins, etc.
• Preparation Methods
  • 1,4 - Butanediol Dehydrogenation Method: γ-Butyrolactone is prepared by the dehydrogenation of 1,4 - butanediol in the presence of a copper catalyst.
  • Maleic Anhydride Hydrogenation Method: Using maleic anhydride as the raw material, γ-Butyrolactone is obtained through a hydrogenation reaction.
  • Other Methods: Including furfural method, Reppe method, acetoxylation method, etc.
• Packaging and Storage
  • Packaging: Usually packed in 200L painted barrels or 1000kg IBC barrels. There are also 200kg/barrel packaging specifications, and ISO tank packaging can also be used according to requirements.
  • Storage: Store in a cool and ventilated warehouse, away from fire sources and heat sources. It should be stored separately from oxidants, acids, alkalis and food - grade chemicals, and mixing storage is strictly prohibited.