As an all purpose cleaning agentmix 2 teaspoons of borax with 2 cups of hot water. shake to blend. pour into a spray bottle. somefolk suggest mixing 2 tablespoons of borax for a more concentrated mix. for the bathroom and kitchendistribute 1 cup of Borax is commonly sold as technical or agricultural grade with 99 to 99.5% minimum purity. potential impurities consist of sodium, potassium, calcium, chloride, bicarbonate, carbonate, sulphate and phosphate but not toxic or heavy metals. this grade includes the borax commonly used as household cleaner. Apr 22, 2017 · pure usp grade mineral powder: borax is not a synthetic chemical and is mined from the deserts of california and turkey as a mineral salt, known as sodium tetraborate, is 99% pure and safe to use for various purposes. no filters, no additives: we supply only the highest quality, raw ingredients available. Jan 31, 2020 · borax is a natural mineral with a chemical formula na 2 b 4 o 7 • 10h 2 o. borax also is known as sodium borate, sodium tetraborate, or disodium tetraborate. it is one of the most important boron compounds. the international union of pure and applied chemistry (iupac) name for borax is sodium tetraborate decahydrate.