Weight: 6 Ounces (170 grams) Purity: 83%-95% Pure Grade: Reagent Texture: Fine Powder (20 Mesh) CAS Number: 9004-62-0 You are buying 6 Ounces (by weight) of Hydroxyethyl Cellulose. The item is in an 8 Fluid Ounce (by volume) Polypropylene bottle. This powder contains 9% Sodium Acetate as a pH Buffer. Hydroxyethyl Cellulose, also known as Hydroxyethyl Ether, 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.