Chemicals
TopGeneral Information
Borax is a sodium salt from boric acid.[1]
TopChemical & Physical Information
| Trivial name | Borax |
| Chemical name | Sodium tetraborate, decahydrate |
| Other names | Natriumtetraboraat (NL,BE) |
| Type of chemical | Ionic compound (salt) |
| Chemical formula | Na2B4O7, 10H2O |
| CAS number | 1330-43-4 (anhydrous) 1303-96-4 (decahydrate) |
| Density | 1.73 g·cm-3 |
| Molar mass | 381.37 g·mol-1 |
| Melting point | 741 °C |
| Boiling point | 1575 °C |
| Soluble | Not in alcohol and ether |
| Solubility (water, 20 °C) | 27 g·L-1  (anhydrous) |
| Crystal system | Monoclinic |
| Appearance | White crystalline solid |
| Colour | White |
| Safety summary | Harmful |
| Safety data | MSDS (decahydrate) |
| Storage | Dry |
| Extra | - |
Photos
(3 cm)
Sources
[1] Wikipedia
[2] Specimen from my personal collection, photo taken by me.
[3] Mullin J.W. - Crystallization, 2001
