Arcanite: Difference between revisions
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Revision as of 08:18, 14 September 2011
| Arcanite[1][2] | |
| Mineralogical name | Arcanite |
| Chemical name | Potassium sulphate |
| Trivial name | Sulphate of Potash |
| Chemical formula | K2SO4 |
| Other forms | |
| Crystal system | orthorhombic |
| Crystal structure | |
| Deliquescence humidity 20°C | 98,2% (10°C), 97,6% (20°C), 97% (30°C) |
| Solubility (g/l) at 20°C | 111,5 g/l |
| Density (g/cm³) | 2,662 g/cm3 |
| Molar volume | 65,5 cm3/mol |
| Molar weight | 174,27 g/mol |
| Transparency | |
| Cleavage | destinct to good |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | |
| Crystal Optics | |
| Refractive Indices | nx = 1,494 ny = 1,495 nz = 1,497 |
| Birefringence | Δ = 0,003 |
| Optical Orientation | positive |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Sulphate
Weblinks[edit]
- ↑ http://webmineral.com/data/Arcanite.shtml viewed on 20/07/2010
- ↑ http://www.mindat.org/min-314.html viewed on 20/07/2010