Sodium hydroxide, Scales
General Product Information
| Article | Sodium hydroxide, Scales |
| Synonyms | Caustic soda, Soda lye, Sodium hydrate, Sodium hydroxide flakes |
| 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 Flakes, is an inorganic, strongly basic substance frequently used in industrial processes. 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: scales, flakes.
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 the production of sodium compounds, soaps, synthetic fibers and dyes.
2. Metalworking
For pickling, degreasing, and surface treatment of metals.
3. Water Treatment
Neutralization of acidic waste streams and pH control.
4. Paper & Pulp Industry
At the unlocking of cellulose fibers in the kraft process.
5. Cleaning Agents
Strong alkaline component in oven cleaners, drain unblockers and industrial 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