Mirabilite: Difference between revisions
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|photo = [[File:HJS_Na2SO4-slides-110703-10x-1.jpg|300px]] | |photo = [[File:HJS_Na2SO4-slides-110703-10x-1.jpg|300px]] | ||
|mineralogical_Name = Mirabilite | |mineralogical_Name = Mirabilite | ||
|chemical_Name = | |chemical_Name = Sodiumsulfate decahydrate | ||
|Trivial_Name = Glauber salt, Reussin, Sulphate of Soda | |Trivial_Name = Glauber salt, Reussin, Sulphate of Soda | ||
|chemical_Formula = Na<sub>2</sub>SO<sub>4</sub>•10H<sub>2</sub>O | |chemical_Formula = Na<sub>2</sub>SO<sub>4</sub>•10H<sub>2</sub>O | ||
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|Crystal_System = monoclinic | |Crystal_System = monoclinic | ||
|Crystal_Structure = | |Crystal_Structure = | ||
|Deliqueszenzhumidity = 93 | |Deliqueszenzhumidity = 93.6% (20°C), 90% (23°C), 87% (25°C) | ||
|Solubility = 900 g/l | |Solubility = 900 g/l | ||
|Density = 1 | |Density = 1.464 g/cm³ | ||
|MolVolume = 219 | |MolVolume = 219.8 cm<sup>3</sup>/mol | ||
|Molweight = 322 | |Molweight = 322.21 g/mol | ||
|Transparency = transparent to opaque | |Transparency = transparent to opaque | ||
|Cleavage = perfect | |Cleavage = perfect | ||
|Crystal_Habit = | |Crystal_Habit = | ||
|Twinning = | |Twinning = | ||
|Refractive_Indices = n<sub>x</sub> = 1 | |Refractive_Indices = n<sub>x</sub> = 1.395<br> n<sub>y</sub> = 1.396-1.410<br> n<sub>z</sub> = 1.398-1.419 | ||
|Birefringence = Δ = 0 | |Birefringence = Δ = 0.04-0.023 | ||
|optical_Orientation = negative | |optical_Orientation = negative | ||
|Pleochroism = | |Pleochroism = | ||
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}} | }} | ||
back to [[ | back to [[Sulfate]] | ||
==Weblinks== | ==Weblinks== | ||
<references/> | <references/> | ||
[[Category:Mirabilite]][[Category:Sulphate]][[Category:Salt]][[Category:InProgress]] | [[Category:Mirabilite]][[Category:Sulphate]][[Category:Salt]][[Category:InProgress]][[Category:Sulfate]] | ||
Revision as of 15:44, 20 December 2011
| Mirabilite[1][2] | |
| |
| Mineralogical name | Mirabilite |
| Chemical name | Sodiumsulfate decahydrate |
| Trivial name | Glauber salt, Reussin, Sulphate of Soda |
| Chemical formula | Na2SO4•10H2O |
| Other forms | Sodiumsulphate heptahydrate Na2SO4•7H2O |
| Crystal system | monoclinic |
| Crystal structure | |
| Deliquescence humidity 20°C | 93.6% (20°C), 90% (23°C), 87% (25°C) |
| Solubility (g/l) at 20°C | 900 g/l |
| Density (g/cm³) | 1.464 g/cm³ |
| Molar volume | 219.8 cm3/mol |
| Molar weight | 322.21 g/mol |
| Transparency | transparent to opaque |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | soluble in water and glycerin, not soluble in pure alcohol easily loses some water, converts to thenardite at 32°C anormal blue or brown interference colours |
| Crystal Optics | |
| Refractive Indices | nx = 1.395 ny = 1.396-1.410 nz = 1.398-1.419 |
| Birefringence | Δ = 0.04-0.023 |
| Optical Orientation | negative |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Sulfate
Weblinks[edit]
- ↑ http://webmineral.com/data/Mirabilite.shtml viewed on 29/07/2010
- ↑ http://www.mindat.org/min-2725.html viewed on 29/07/2010