Boric Acid -Purity: 99.5% -Powder or Granular -Agricultural/Industrial Use -Dedicated Supplier since 1986 *Features Boric acid, also called hydrogen borate, boracic acid, orthoboric acid and acidum boricum, is a weak acid of boron often used as an antiseptic, insecticide, flame retardant, neutron absorber, or precursor to other chemical compounds. It has the chemical formula H3BO3 (sometimes ...