Caustic soda flakes, also known as sodium hydroxide flakes, are white, solid flakes with a strong alkaline taste and odor. Caustic Soda Flakes Are Used In Pulp & Paper, Bleach Manufacturing, Soap, Textile, Chemical Process . It is a highly caustic and reactive chemical that is commonly used in industrial processes, such as in the production of paper, textiles, and various chemicals. Here are some common specifications for caustic soda flakes: Chemical formula: NaOH Molecular weight: 40.00 g/mol Appearance: White, solid flakes Density: 2.13 g/cm Melting point: 318.4C Boiling point: 1390C Solubility: Highly soluble in water Purity: Typically 98% or higher Storage: Caustic soda flakes should be stored in a cool, dry, well-ventilated area away from sources of moisture and incompatible materials. Please note that these specifications may vary depending on your requirements.