Sodium Hydroxide Formula & Description | |
Sodium Hydroxide is a white solid and highly caustic metallic base and alkali salt which is available in pellets, flakes, granules, and as prepared solutions at a number of different concentrations. Sodium hydroxide is also known as caustic soda or lye. It is used in many industries, mostly as a strong chemical base in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents and as a drain cleaner. Sodium Hydroxide is a popular strong base used in the industry. Sodium hydroxide is used in many scenarios where it is desirable to increase the alkalinity of a mixture, or to neutralize acids. Sodium hydroxide is also widely used in pulping of wood for making paper or regenerated fibers. Along with sodium sulfide, sodium hydroxide is a key component of the white liquor solution used to separate lignin from cellulose fibers in the kraft process. It also plays a key role in several later stages of the process of bleaching the brown pulp resulting from the pulping process. It is used in the Bayer process of aluminium production. Sodium hydroxide is frequently used in the process of decomposing roadkill dumped in landfills by animal disposal contractors. It is added to water, heated, and then used to clean process equipment, storage tanks, etc. It can dissolve grease, oils, fats and protein based deposits. It is also used for cleaning waste discharge pipes under sinks and drains in domestic properties.
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Chemical Properties
| Acidity | ~13 |
| Appearance | White Solid |
| Boiling Point | 1388 °C |
| CAS Number | 1310-73-2 |
| ChEBI | 32145 |
| Density | 2.13 g/cm3 |
| EINECS Number | 215-185-5 |
| IUPAC Name | Sodium Hydroxide |
| InChI | 1S/Na.H2O/h;1H2/q+1;/p-1 |
| InChIKey | HEMHJVSKTPXQMS-UHFFFAOYSA-M |
| Melting Point | 318 °C |
| Molar Mass | 39.997 g/mol |
| Molecular Formula | NaOH |
| NFPA 704 | H-3, F-0, R-1, C-COR |
| Other_Cations | Lithium hydroxide;Potassium hydroxide;Rubidium hydroxide;Caesium hydroxide |
| RTECS Number | TT2975000 |
| Refractive | 1.412 n/D |
| Related Compounds | Sodium oxide |
| Synonyms | Caustic Soda Flakes;Sodium Hydroxide Solution;Caustic Soda Beads;Caustic Soda |
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