What is GBL?

(for explanation of unfamiliar scientific terms, we recommend www.britannica.com )

Description

gamma-Butyrolactone (GBL) is a colorless liquid, free of suspended matter. It is miscible (capable of being mixed; specifically: capable of mixing in any ratio without separation of two phases) with water, alcohols, ketones, esters and aromatic hydrocarbons. Solubility is limited in aliphatic and cycloaliphatic hydrocarbons.

Safety

bullet gamma-Butyrolactone (GBL) is a strong mucous membrane irritant, as well as a mild skin irritant.
bullet GBL can penetrate the epidermis and cause rashes or eczema.
bullet GBL has a narcotic effect.
bullet This product is neither explosive nor spontaneously flammable in air. However, it is combustible. Materials recommended for storage tanks are carbon steel, stainless steel and nickel. Always refer to the Material Safety Data Sheet (MSDS) for detailed information on handling and disposal.

Applications

bullet GBL serves as a chemical intermediate in the manufacture of all pyrrolidones. It can be used in the production of pesticides, herbicides and plant growth regulators. GBL may be formed as an intermediate in the production of vitamins and pharmaceuticals.
bullet As a solvent, GBL can be used in/with:
bullet pesticides
bullet photochemical etching
bullet electrolytes of small batteries or capacitors
bullet viscosity modifiers in polyurethanes
bullet surface etching of metal coated plastics
bullet organic paint disbursements for water soluble inks
bullet pH regulators in the dyeing of wool and polyamide fibers
bullet foundry chemistry as a catalyst during curing
bullet curing agents in many coating systems based on urethanes and amides

Graph of GBL Specification as reported by BASF (http://www.basf.com):

GBL Product Specs

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