Hercules®, Glug® Drain Cleaner, Container Size: 20 oz, Composition: Sodium Hydroxide (100), Form: Solid Powder, Odor/Scent: Odorless, Off-White, Specific Gravity: 2.13, pH Range: 13 to 14, Density: 1.2, Boiling Point: 2534 Deg F, Solubility: Appreciable (42g/100cc of Water), For Use With: Clears, Cleans Kitchen, Tub, Bathroom, Shower Drains, Grease Traps, Flammability: Non-Flammable, NFPA Rating: 031