boron chloride is a chemical compound that is used in many different industries. It is the starting material for producing elemental boron and plays a vital role in refining aluminum, copper, and zinc alloys to remove oxides and nitrides from the metal. It also has a number of other uses, including in the manufacturing of electrical resistors and as an additive to rocket fuel and high-energy fuels.
This chemical is toxic and corrosive to skin, eyes and other parts of the body. It should be handled with care and is best stored in an airtight bottle, away from moisture. It can be flammable and may produce fumes that irritate the eyes, mouth and lungs.
It has an electron-deficient central boron atom and adopts a trigonally planar geometry that conforms to the octet rule. It is a Lewis acid and has a pH of 7.
The molecular structure of boric acid is similar to that of sodium tetraborate decahydrate Na2B4O7 * 10H2O, the most important chemical use of boric acid. It is a common component in cement, leather tanning, glass and ceramics. It is also used in paints, soaps, toothpaste, dyes and fertilizers, as an insecticide, and as a mild antiseptic.
It reacts with chlorine to form boron trifluoride and subsequently with aluminum chloride to form boron trichloride. NMR examinations of mixtures of boron trihalides show that they do not dimerize, a phenomenon that is often seen with alkali halides such as aluminium chloride and magnesium trichloride, indicating a degree of p-bonding between the trigonal boron atoms.