Weight: 16 Ounces (1 Pound) Purity: 99+% Pure Grade: Reagent Grade Texture: Fine Powder CAS Number: 7778-77-0 You are buying 16 Ounces (by weight) of Potassium Phosphate Monobasic. The item is in TWO 8 Fluid Ounce (by volume) Polypropylene bottles. Potassium Phosphate Monobasic (KH2PO4); Phosphoric Acid / Monopotassium Salt / Potassium Dihydrogen Phosphate / has hundreds of uses. 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, the screw tops are heat-sealed and the bottles are sealed in plastic.