Gamma-Butyrolactone (GBL) is usually a hygroscopic colorless liquid with a weak characteristic odor. Soluble in water, GBL is a standard solvent and reagent in chemistry and getting used being a flavouring, like a cleaning solvent, to be a superglue remover, and for a solvent in a few wet aluminium electrolytic https://garrettjkhed.blogminds.com/gbl-wheel-cleaner-2liters-fundamentals-explained-19998849