Dec 30, 2018u00a0u00b7 boric acid (h3bo3) is a white crystalline, oxygen-bearing acid of boron, which is a component of certain minerals and volcanic waters or hot springs. itu2019s also known as hydrogen borate, boracic acid, orthoboric acid and acidum boricum. you can see from the boric acid formula h3bo3 that it consists of the elements boron, oxygen and hydrogen. Boric acid has mild antiseptic and antifungal actions. vaginal boric acid is a homeopathic prescription medicine that also contains probiotics or friendly bacteria (lactobacilliales), as well as the antioxidants vitamin c and e. this product works by replenishing normal vaginal acidity and balancing vaginal flora (helpful bacteria). Where to buy boric acid as a natural and a powerful insecticide, boric acid is commercially available in various places. the powder works in a way whereby it is taken up by the cockroaches as they run through the areas that are treated. If you add sodium hydroxide to boric acid it becomes water and borax and if you eat borax in the stomach the acid will convert it to boric acid. they are different but not totally different. actually if you put boric acid in water about 1% if it will convert to the same anion borax or sodium borate will produce in water as well.