Boron Trichloride (BCI3)

Boron trichloride (BCl3) is a corrosive gas that is colorless and toxic and is delivered as a liquid under its own vapor pressure. Southern California customers who want a well-established, local producer of boron trichloride should get in touch with WestAir Specialty Gases and Equipment at 866-WESTAIR.

Boron trichloride has a variety of traditional uses, including as a starting material for the manufacture of elemental boron. It has been normally associated with the preparation and refining of aluminium, magnesium, zinc, and copper alloys to remove nitrides, carbides, and oxides from molten metal, although the majority of these processes have moved away from North America.

It still experiences some use when mixed with other compounds as a soldering flux for alloys of aluminium, iron, zinc, tungsten, and monel. Most BCl3 in North America was once used in the production of electrical resistors, to help create a carbon film over a ceramic base. Currently, most Ultra High Purity Boron Trichloride (BCl3) is utilized in plasma etching in semiconductor manufacturing. This gas etches metal oxides by formation of boron chlorates.

Cylinder quantities of PurityPlus® High Purity Boron Trichloride are also provided to many chemical research facilities and universities for use as a reagent in the creation of organic chemicals.