Boric acid, also called hydrogen borate, boracic acid, orthoboric acid and acidum boricum, is a weak, monobasic Lewis acid of boron often used as an antiseptic, flame retardant, neutron absorber, or precursor to other chemical compounds. It has the chemical formula H3BO3 (sometimes written B(OH)3), and exists in the form of colorless crystals or a white powder that dissolves in water. When occurring as a mineral, it is called sassolite.

Household Uses: Boric acid can inhibit the growth of fungus, making it a great wood preservative and termite defender in household furniture. Adding boric acid to your laundry load can help to remove stains and odor from clothing. 

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