SODIUM BORATE DECAHYDRATE. Weight: 8 Ounces (227 Grams) Purity: 99.9% Pure Grade: Reagent Grade Texture: Fine Powder CAS Number: 1303-96-4 You are buying 8 Ounces (by weight) of Sodium Borate Decahydrate. The item ships in TWO 4 Fluid Ounce (by volume) Polypropylene bottles. Sodium Borate Decahydrate (Na2B4O7·10H2O); also known as Borax; has hundreds of uses. NOTE: See our other listing if you are looking for Sodium Borate Anhydrous. SHIPS FAST FROM CALIFORNIA, USA! 2-4 day transit time throughout the country. We ship three times a day; so your item is guaranteed to go out the very same day you place your order. Our bottles are made of sturdy polypropylene. The square, “space-saver” shape ensures that the bottles fit snugly on a shelf. The wide mouth makes for easy dispensing and stackability. To ensure a spill-free journey, we shrink-wrap the screw tops and seal the bottles in plastic.