Boric acid is a naturally occurring inorganic acid that has many uses in a variety of industries. Boric acid is a white powdery substance that is soluble in water and alcohol, and is highly corrosive to metals. It is often used in pest control and as a fumigant.Common Boric Acid is an acid that has a low melting point, which makes it difficult to be mixed with other substances. It is typically sold as a powder and is often used in the form of a paste or a liquid. The acid is a common ingredient in household cleaning products, as well as products such as toothpaste and deodorant.