Natron
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| Natron[1][2] [3] | |
| Mineralogical name | Natron |
| Chemical name | Sodium carbonate dekahydrate |
| Trivial name | Soda |
| Chemical formula | Na2CO3•10H2O |
| Other forms | |
| Crystal system | monoclinic |
| Crystal structure | |
| Deliquescence humidity 20°C | 96.5% (15°C), 97.9% (20°C), 88.2% (25°C), 83.2% (30°C) |
| Solubility (g/l) at 20°C | 215.8 g/l |
| Density (g/cm³) | 1.46 g/cm³ |
| Molar volume | 196.0 cm3/mol |
| Molar weight | 286.14 g/mol |
| Transparency | transparent to translucent |
| Cleavage | distinct to good |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | blooms quickly in dry air and passes into the monohydrate pH about 12 |
| Crystal Optics | |
| Refractive Indices | nx = 1.405 ny = 1.425 nz = 1.440 |
| Birefringence | Δ = 0.035 |
| Optical Orientation | biaxial negative |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Carbonate
Weblinks[edit]
- ↑ http://webmineral.com/data/Natron.shtml viewed on 09/06/2011
- ↑ http://www.mindat.org/min-2858.html viewed on 09/06/2011
- ↑ <bib id="Broul.etal:1981">