Caustic Soda Flakes have the chemical formula NaOH (Sodium Hydroxide). The molecular weight is 40.00 g/mol. They appear as white, odorless solid flakes. The purity is typically 98%–99% minimum. They are highly soluble in water with heat generation during dissolution. The pH of a 1% solution is approximately 13–14. The melting point is around 318°C. The product is hygroscopic and absorbs moisture from air. Insoluble matter content is maintained within industry standards. The product complies with relevant industrial and chemical quality standards upon request.