Glycol Ethers

Butyl Tri Glycol Ether

Butyl tri glycol ether (also known as BTGE, butyl tri tetra, triethylene glycol butyl ether, butoxy triglycol and triglycol monobutyl ether) is a clear, colourless liquid with a mild odour.  It is miscible in water, has low volatility, and has the formula C10H22O4.

Production

Butyl tri glycol ether is produced as the result of ethylene oxide reacting with alcohol.  Global consumption of butyl tri glycol ether is estimated at approximately 21,000 tonnes per year.

Storage and Distribution

BTGE can be stored and transported in stainless steel, mild steel, or carbon steel drums and/or tanks and must be kept in a well-ventilated area.  It is not classified as dangerous for any form of transport but is classed as an Irritant.  It has a flash point of 156 oC (closed cup) and a specific gravity of 0.985.

Uses

The main use of BTGE is as component of the base blend used in the manufacture of hydraulic oils, especially brake fluids.  It is a useful component in paint stripping formulations as it has low volatility, and is also employed as a dye carrier in textile dyeing processes.  Butyl tri glycol ether is a solvent for oils, gums, soaps, and grease so is a component found in many industrial and household cleaners.  It also acts as a coalescent in the coatings industry as it is a solvent for nitrocellulose.