Source: Occurs naturally in rocks and minerals. Used in Silly Putty, rocket fuel, pharmaceuticals, cosmetics, fiberglass, pesticides, detergents, and fire retardants, among others.

Summary: Boron is element 5 on the periodic table. It occurs naturally in rocks and minerals. It has a density of 2.350 g/mL. Boron forms compounds with oxygen such as boron oxide and borate. Boron is used in the production of glass, fire retardants, cosmetics, fiberglass, detergents, and pesticides, among others. Boric acid is used for its antifungal and antiviral properties in pharmaceuticals and may be an additive in swimming pools for water treatment. Boron nitride in single crystal form may be harder than diamond, and forms similar crystal structures. Boron has been used in rocket fuels and in nuclear reaction chambers to shield for radiation. Boron is also used in Silly Putty.

GHS Hazard Statement: H302, H319, H332, H335, GHS07