Borax, 10AQ
General Product Information
| Article | Borax 10AQ |
| Synonyms | Borax decahydraat, Sodium borate decahydrate, Sodium tetraborate decahydrate |
| CAS No. | 1330-43-4 |
| EEG No. | 005-011-01-1 |
| EINECS No. | 215-540-4 |
| IMO | – |
| Tariff Code | 28401990 |
| UN No. | – |
| VLG/ADR | – |
Description
Borax 10AQ is the decahydrate form of sodium tetraborate and comes as a white, crystalline powder. It is an inorganic salt containing ten molecules of crystal water per unit of formula. The product is used industrially and commercially because of its versatile properties, including buffering capacity, mildly alkaline character and stabilizing ability. Borax 10AQ is widely applicable in industries such as chemical, construction, cleaning, Agriculture, and glass and ceramics industries.
Characteristics
- Odor: Odorless.
- Hygroscopic: –
- Color: White.
- Grade: Technical.
- Solubility: Highly soluble in water.
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | Na2B4O7-10H2O |
| Molar Weight | 381.37 g/mol |
| Melting Point. | Loses crystal water from 62°C; decomposition above 157°C. |
| Boiling Point | – |
| Density | 1.73 g/cm³ |
| Refractive Index | – |
| pH. | Approx. 9.3 (on 1% solution). |
Interessing Links
- CAS Common Chemistry – Sodium Tetraborate
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Sodium Borate – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Borax
Applications
Borax 10AQ is applied in various ways, for instance:
1. Glass & Ceramics Industry
As a fluxing agent that lowers melting temperature and increases glass clarity.
2. Agriculture
As a trace element in fertilizers (boron source), essential for plant growth.
3. Cosmetics & Personal Care
As a stabilizer and preservative.
4. Metalworking
In soldering and welding fluxes, to prevent oxidation.
5. Paper & Textile Industry.
Used as a stabilizer and buffer at chemical treatments.
6. Flame Retardants
Added to plastic, textile or wood for fire retardancy.
7. Cleaning Products Industry
As an alkaline buffer and water softener in detergents, soaps and industrial cleaners.