Potassium Hydroxide (45% Solution) FCC WC Code: 16-021-003 Sales Specification Appearance: Clear and colorless Assay: 44.50 % â?? 45.50 % Specific Gravity at 25oC: 1.448 â?? 1.455 Potassium Carbonate (K2CO3): 0.3 % Max. Sodium (Na): 2,000 ppm Max. Iron (Fe): 1 ppm Max. Calcium (Ca) & Magnesium (Mg): 0.5 ppm Max. Packing 3,265 lb IBC tote DOT Transportation UN1814 Proper Shipping Name: Potassium Hydroxide, Solution Hazard Class:8 Packing Group: II Reportable Quantity (RQ): (Potassium Hydroxide: 1000lbs)