Caustic Soda, also known as Sodium Hydroxide, is one of the most fundamental strong bases and a critical inorganic chemical raw material. At room temperature, the pure product is a white, opaque solid, commonly available in flakes (flake caustic), pearls (granular), blocks, and also as a high-concentration liquid (liquid caustic). It is highly hygroscopic and corrosive, readily dissolving in water with significant heat release. As a bulk basic chemical, caustic soda is the “staple food” of modern industry, and its production and consumption are key indicators of a nation’s chemical industry level. It is widely used in almost all core industrial fields such as the chemical industry, textile, papermaking, metallurgy, daily chemicals, and water treatment.
| CAS: | 1310-73-2 | UN: | 1823 |
| Other Names: | Sodium hydroxide, NaOH, Soda lye, White caustic | Appearance: | Its appearance includes flake, granular, block solid, and colorless transparent liquid. |
| Density: | 2.1 g/cm³ | Melting point: | 318 °C |
| Boiling point: | 1388 °C | Flash point: | °C |
| Molecular Formula: | NaOH | ||