Disodium octaborate tetrahydrate (Na2B8O13·4H2O, CAS 12280-03-4) is an odorless white powder borate compound, soluble in water. Also known as DOT or sodium octaborate, it is a boron-based chemical valued for its preservative and insecticidal properties.
Disodium octaborate tetrahydrate is commonly used in wood preservation, insulation, pest control, and other borate-based applications.