GBL has a wide range of practical applications because of its low freezing point, high boiling point, and a unique combination of solvent and electrical properties. It has applications as a solvent for special resins, in photography, in batteries, and as an electrolyte. Also a number of derivatives are synthesized from GBL.
- CAS: No. 96-48-0 (T)
- EINECS: No. 202-509-5
- Japan Chemical Substances Control Law: METI-No. 5-3337
- Japan, Industrial Safety and Health Law: No. 5-3337
- Japan, Poisonous and Deleterious Substances Control Law: Not applicable.
- Japan, Fire Services Law: Hazardous material Class 4 Petroleums No.3 (water-soluble liquid).Aprotic, polar solvent.
GBL is a 5-membered-ring lactone.
|Japan Chemical Substances Control Law METI-No.||5-3337|
|Japan, Poisonous and Deleterious Substances Control Law||Not applicable|
|Japan, Fire Services Law||Hazardous material Class 4 Petroleums No.3 water soluble, Hazardous Rank III|
|Appearance||Clear colorless liquid|
|Odor||Faint ester smell|
|Specific Gravity (25/4℃)||1.13|
|Boiling Point (℃)||204|
|Freezing Point (℃)||-44|
|Vapor specific gravity||3|
|Flash Point (℃)||101 (Cleveland open cup)|
|Autoignition Temperature (℃)||455|
Our Mizushima plant (Kurashiki-shi, Okayama-ken) produces high-grade GBL from maleic anhydride in a continuous production process.
1) Solvent Applications
Used as a solvent for photosensitive resins and for special inks.
Used for dispersion and finishing agents.
Used as the electrolyte solvent for capacitors and for lithium batteries.
- Casting Binder
2) Raw Material for Synthesis Applications
Used as a raw material for the solvents listed below.
- 2-Pyrrolidone (2P)
2P is a raw material for pharmaceutical intermediates, nylon-4, NMP, as well as a floor polish agent.
- N-Methyl-2-pyrrolidone (NMP)
NMP is used for aromatic and butadiene hydrocarbon extraction, polyamide/polyimide varnish solvent, as well as semiconductor and color filter photoresist solvent, etc.
- N-Vinyl-2-pyrrolidone (NVP)
NVP is a raw material for PVP. It's also used as a stripping agent and a petroleum additive.
- Polyvinylpyrrolidone (PVP)
PVP is used for cosmetics (hair spray and lotion thickening agent), medical products (tablet binder, plasma substitute, mouthwash), industrial applications (suspension stabilizer for colloidal suspension polymerization, dyeing agent, hardening oil viscosity modifier, adhesive thickening agent), and food (beer / wine clarification agent).
There are many other applications such as methionine, etc.
Storage and Handling
GBL is classified under the Japanese Fire Services Act as a hazardous material, Class 4, Petroleums No.3 (4,000 liter quantity specified), water-soluble, Hazardous Rank III.
Since GBL is hygroscopic, if moisture content is to be controlled, it is important to keep storage containers tightly closed or under a dry nitrogen atmosphere. When handling, protective equipment such as protective gloves and goggles should be worn.
|Specific Gravity (20/4℃)||1.129～1.131|
|Tanker Truckload (Lorry)||10ton|