What Is GBL Chemical Used For? Industrial Applications, Chemistry & Laboratory Synthesis
Introduction: The Dual Identity of Gamma-Butyrolactone
Gamma-Butyrolactone (GBL), identified by CAS Registry Number 96-48-0, is a high-boiling, dipolar aprotic industrial solvent and indispensable chemical intermediate. Characterized by its five-membered lactone ring (C₄H₆O₂), GBL exhibits high thermal stability, a high dielectric constant, and outstanding solvency power across a wide spectrum of organic polymers, resins, and inorganic salts.
Over 90% of global GBL production is dedicated to critical high-tech manufacturing, electronic components, precision degreasing, and pharmaceutical chemical synthesis.
Technical & Physical Properties of GBL
| Parameter | Specification / Value |
|---|---|
| IUPAC Name | Dihydrofuran-2(3H)-one |
| CAS Number | 96-48-0 |
| Chemical Formula | C₄H₆O₂ |
| Assay Purity (Analytical Grade) | ≥ 99.9% (LiquidX Certified) |
| Boiling Point | 204.0 – 205.0 °C (760 mmHg) |
| Melting / Freezing Point | -43.53 °C |
| Flash Point (Closed Cup) | 98.0 °C (208.4 °F) |
| Dielectric Constant (20 °C) | 39.1 |
Top Industrial & Technological Applications
1. Lithium-Ion Battery & Supercapacitor Electrolytes
GBL serves as an essential co-solvent in non-aqueous electrolytes for lithium-ion batteries and aluminum electrolytic capacitors due to its broad liquid operating range (-43.5 °C to +205 °C) and high dielectric constant (39.1) that accelerates lithium salt dissociation.
2. Semiconductor & Microelectronics Precision Degreasing
GBL efficiently strips positive and negative photoresist resins without etching sensitive silicon wafers or copper interconnects, while dissolving polar soldering fluxes.
3. High-Performance Polymer Stripping & Industrial Cleaning
As a biodegradable alternative to chlorinated solvents, GBL penetrates and dissolves cured epoxy resins, polyurethanes, and polyamides. Widely used in wheel cleaners and industrial graffiti removers.
4. Chemical Intermediate for Pyrrolidones & APIs
GBL is the essential precursor for synthesizing 2-pyrrolidone, N-Methyl-2-pyrrolidone (NMP), and active pharmaceutical ingredients.
Frequently Asked Questions
What makes GBL an effective industrial cleaner? ▾
GBL is a dipolar aprotic solvent with high solvency power that breaks down strong polymer crosslinks in epoxies, polyurethanes, and cured adhesives, while remaining fully biodegradable.
Why is GBL utilized in lithium-ion battery electrolytes? ▾
GBL possesses a high dielectric constant (39.1) that dissolves lithium salts efficiently and an extremely wide liquid operating window (-43.5 °C to +205 °C), preventing freezing in winter conditions and evaporation under heavy electrical load.
What packaging materials are suitable for storing GBL? ▾
GBL must be stored in fluorinated HDPE containers, PTFE vessels, or airtight borosilicate glass bottles. Standard non-fluorinated plastics and rubber gaskets will swell, degrade, and dissolve.
Where can I buy lab-tested pure GBL in Europe? ▾
You can order certified 99.9% pure Gamma-Butyrolactone online from LiquidX, packaged in double vacuum-sealed fluorinated HDPE containers with tracked express courier delivery across the European Union.
Certified Laboratory Formulations
High-purity chemical reagents tested via GC-MS with verified dispatch across Europe.
Related Educational & Laboratory Guides
Expand your research with peer-reviewed protocols, chemical comparisons, and safety data.
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