Boron Trichloride (BCI3)

Boron trichloride (BCl3) is a toxic, colorless, corrosive gas delivered as a liquid under its own vapor pressure. Winona customers who want a reputable, local producer of boron trichloride should contact Mississippi Welders Supply Co., Inc. at (507) 454-5231.

Boron trichloride has a number of known uses, including as a starting material for the manufacture of elemental boron. It has been historically connected with the preparation and refining of aluminium, magnesium, zinc, and copper alloys to eliminate nitrides, carbides, and oxides from molten metal, although most of these processes have moved away from North America.

It still has 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 creation of electrical resistors, to help create a carbon film over a ceramic base. Right now, most Ultra High Purity Boron Trichloride (BCl3) is applied 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 distributed to many chemical research facilities and universities for use as a reagent in the development of organic chemicals.