The key properties of caustic soda include:

• Chemical Composition: Sodium hydroxide (NaOH).
• Appearance: White, solid, and easily available as flakes, pellets, or a solution.
• Solubility: Highly soluble in water, with a strong exothermic reaction upon dissolving.
• pH Level: Highly alkaline, with a pH typically above 13.
• Boiling Point: About 1380 °C (2500 °F) when in solid form.
• Density: Approximately 2.13 g/cm³ in solid form.