Sodium chloride
General Product Information
| Article | Sodium chloride |
| Synonyms | Common salt, Rock salt, Salt |
| CAS No. | 7647-14-5 |
| EEG No. | – |
| EINECS No. | 231-598-3 |
| IMO | – |
| Tariff Code | 25010099 |
| UN No. | – |
| VLG/ADR | – |
Description
Sodium chloride is an inorganic salt, widely used worldwide. It is an essential raw material in various industries. In its pure form, sodium chloride is a white, crystalline powder or granulate with a characteristic salty taste. It occurs naturally as the mineral halite and is extracted industrially through mining or from seawater by evaporation.
Characteristics
- Odor: Odorless.
- Hygroscopic: Yes.
- Color: White.
- Grade: Technical.
- Solubility: Highly soluble in water, insoluble in ethanol.
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | NaCl |
| Molar Weight | 58.44 g/mol |
| Melting Point | 801 °C |
| Boiling Point | 1.413 °C |
| Density | 2.16 g/cm³ |
| Refractive Index | – |
| pH | 7 (at 5% solution) |
Applications
Sodium chloride is applied in various ways, for instance:
1. Chemical Industry
Raw material for the production of caustic soda (NaOH), chlorine (Cl2) and hydrogen via electrolysis. In addition, it forms the basis for various sodium and chlorine compounds.
2. Water Treatment
It is used as regeneration salt for ion exchangers in softening plants.
3. Road Management
Road salt against slipperiness on roads, bike paths and industrial sites.
Interessing Links
- CAS Common Chemistry – Sodium Chloride
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Sodium Chloride – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Sodium chloride