Sodium hydroxide (pearls)
General Product Information
| Article | Sodium hydroxide (pearls) |
| Synonyms | Caustic soda, Soda lye, Sodium hydrate |
| CAS No. | 1310-73-2 |
| EEG No. | 011-002-00-6 |
| EINECS No. | 215-185-5 |
| IMO | Class 8 (c). |
| Tariff Code | 28151100 |
| UN No. | 1823 |
| VLG/ADR | Class 8, Packing Group ii |
Description
Sodium hydroxide, also known as Caustic soda, is an inorganic, strongly alkaline substance widely used in industrial processes. In pearl form (also called granular or pellet form), the product is dust-free, easy to dispense and easy to store. Sodium hydroxide is a white, odorless, Hygroscopic solid that dissolves in water with strong heat generation. It is a powerful base used in a variety of industries because of its reactive, degreasing and neutralizing properties.
Characteristics
- Odor: Odorless.
- Hygroscopic: Yes.
- Color: White.
- Grade: Technical.
- Solubility: Highly soluble in water.
- Shape: pearl, pellet, pellet.
Physical & Chemical Properties
| Chemical Structure | NaOH |
| Molar Weight | 40.00 g/mol |
| Melting Point | 318 °C |
| Boiling Point | 1.388 °C |
| Density | 2.13 g/cm³ (at 20 °C) |
| Refractive Index | – |
| pH. | Approx. 13-14 (on 1% solution). |
Applications
Sodium hydroxide is applied in various ways, for instance:
1. Chemical Industry
Raw material for synthesis of other chemicals.
2. Metalworking
For degreasing and cleaning metal surfaces.
3. Water Treatment
Neutralization of acidic waste streams and pH control.
4. Textile Industry
Mercerization of cotton for luster and strength.
5. Paper & Pulp Industry
For de-inking and bleaching paper.
6. Cleaning Products Industry
For production of soaps and degreasers.
Interessing Links
- CAS Common Chemistry – Sodium hydroxide
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Sodium Hydroxide – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Sodium hydroxide