Caustic soda is NaOH sodium hydroxide, also known as caustic soda or caustic soda. Soda is Na2CO3, and sodium carbonate is soda ash.
The chemical formula is NaOH, commonly known as caustic soda, caustic soda, or caustic soda. It is a highly corrosive strong alkali, usually in the form of flakes or blocks, easily soluble in water (releasing heat when dissolved in water) and forming an alkaline solution. It also has deliquescence and is easy to absorb water vapor (deliquescence) and carbon dioxide (deterioration) from the air. Hydrochloric acid can be added to test for deterioration.
NaOH is one of the chemicals used in chemical laboratories and is also a common chemical product. Pure product is a colorless and transparent crystal. Density 2.130g/cm3. Melting point 318.4 ℃. Boiling point 1390 ℃. Industrial products contain small amounts of sodium chloride and sodium carbonate, which are white opaque crystals. There are blocky, flaky, granular, and rod-shaped shapes. Equation quantity 39.997.
Sodium hydroxide can be used as an alkaline cleaning agent in water treatment, soluble in ethanol and glycerol; Insoluble in propanol. Disproportionation reaction occurs with halogens such as chlorine, bromine, and iodine. Neutralizing with acids to form salts and water.
Sodium carbonate (Na2CO3), molecular weight 105.99. The purity of chemicals is mostly above 99.5% (mass fraction), also known as pure alkali, but classified as salt, not alkali. In international trade, it is also known as soda or alkali ash. It is an important organic chemical raw material, mainly used in the production of flat glass, glass products, and ceramic glaze. It is also widely used for daily washing, acid neutralization, and food processing.
