What is Gamma-Butyrolactone used for?

Gamma-Butyrolactone (GBL), CAS 96-48-0, is used as a high-boiling industrial solvent and reaction medium, and as an intermediate for NMP, 2-pyrrolidone, PVP and other derivatives. It also appears in electronics cleaning, lithium-ion battery electrolyte formulations, and selected pharmaceutical or fine-chemical processes.

Why is Gamma-Butyrolactone regulated, and how does that affect sourcing?

GBL can be converted to GHB and is controlled or regulated as a drug precursor in several jurisdictions. Confirm the intended industrial end use, import or licensing requirements, approved destination and any end-user documentation before shipment.

What is Gamma-Butyrolactone used for in pyrrolidone and electronics applications?

GBL is a key raw material for NMP, 2-pyrrolidone and related pyrrolidones. In electronics it is used where strong solvency and high purity are needed, including cleaning formulations and as a lithium-ion battery electrolyte co-solvent.

Which specification parameters should be compared for Gamma-Butyrolactone?

Compare GC assay, water, Hazen color, acidity or acid value, and peroxide or stabilizer content. Grade and documentation requirements should match the intended solvent, electrolyte, pharmaceutical or polymer process.

What are typical physical properties of Gamma-Butyrolactone?

Gamma-Butyrolactone is normally a colorless, oily and hygroscopic liquid miscible with water and many organic solvents. Typical values are density about 1.12-1.13 g/mL, melting point about -45 to -43 C, boiling point about 204-206 C, and closed-cup flash point around 98-101 C.

Gamma-Butyrolactone (GBL) CAS 96-48-0

Gamma-Butyrolactone (GBL), CAS 96-48-0, is a lactone used as a process solvent and reaction medium in industrial chemical processing. State the intended industrial use, required specification, quantity, packaging, destination, and document needs in the RFQ.

CAS: 96-48-0
Synonyms: Gamma-Butyrolactone; 1,4-Butyrolactone; GBL; 4-Butanolide
Einecs: 202-509-5
Molecular Formula: C₄H₆O₂
Grade: Confirm the current product-specific specification.
Package: Confirm packaging for the offered material and destination requirements.

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Product Description

Gamma-Butyrolactone (GBL) is a lactone identified by CAS 96-48-0. The names 1,4-butyrolactone and 4-butanolide refer to the same substance.

Alternative names: Gamma-Butyrolactone; 1,4-Butyrolactone; GBL; 4-Butanolide.

Molecular formula: C₄H₆O₂.

Molar mass: 86.09 g/mol.

CAS Number: 96-48-0.

EINECS: 202-509-5.

Melting point: confirm the current product-specific value.

Density: confirm the current product-specific value.

Physical properties: confirm the current product-specific value.

Boiling point: confirm the current product-specific value.

Flash point and handling requirements: confirm the current product-specific value.

Vapor-pressure requirements: confirm the current product-specific value.

Process-temperature limits: confirm the current product-specific value.

Process conditions and equipment compatibility: confirm the current product-specific value.

Typical industrial context: GBL is used as a process solvent and reaction medium in industrial chemical processing. State intended use and destination requirements in the RFQ.

FAQ - Technical & Supply Chain

Q:
What is Gamma-Butyrolactone used for?

A: Gamma-Butyrolactone (GBL), CAS 96-48-0, is used as a high-boiling industrial solvent and reaction medium, and as an intermediate for NMP, 2-pyrrolidone, PVP and other derivatives. It also appears in electronics cleaning, lithium-ion battery electrolyte formulations, and selected pharmaceutical or fine-chemical processes.
Q:
Why is Gamma-Butyrolactone regulated, and how does that affect sourcing?

A: GBL can be converted to GHB and is controlled or regulated as a drug precursor in several jurisdictions. Confirm the intended industrial end use, import or licensing requirements, approved destination and any end-user documentation before shipment.
Q:
What is Gamma-Butyrolactone used for in pyrrolidone and electronics applications?

A: GBL is a key raw material for NMP, 2-pyrrolidone and related pyrrolidones. In electronics it is used where strong solvency and high purity are needed, including cleaning formulations and as a lithium-ion battery electrolyte co-solvent.
Q:
Which specification parameters should be compared for Gamma-Butyrolactone?

A: Compare GC assay, water, Hazen color, acidity or acid value, and peroxide or stabilizer content. Grade and documentation requirements should match the intended solvent, electrolyte, pharmaceutical or polymer process.
Q:
What are typical physical properties of Gamma-Butyrolactone?

A: Gamma-Butyrolactone is normally a colorless, oily and hygroscopic liquid miscible with water and many organic solvents. Typical values are density about 1.12-1.13 g/mL, melting point about -45 to -43 C, boiling point about 204-206 C, and closed-cup flash point around 98-101 C.

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