Chemical Formula NaOH Molecular Weight 40.00 CAS No. 1310-73-2 Parameters Average Chemical Analysis Physical appearance White deliquescent flakes. Concentration (NaOH) 98.0 ± 1 % Sodium Carbonate (Na2CO3) 1.0 % max. Sodium chloride (NaCl) 0.04 % max. Iron (Fe) 20 ppm Gross weight: 25.0 kgs/bag Estimated delivery time: 1-3days. Separate Delivery Charges. Packing: Bags(without pallet) Colour: white