Darapskite
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Darapskite[1][2] [3] | |
Mineralogical name | Darapskite |
Chemical name | Trisodiumsulfate nitrate Monohydrate |
Trivial name | |
Chemical formula | Na3(SO4)(NO3)•H2O NaNO3•Na2SO4•H2O |
Other forms | |
Crystal system | {{{Crystal_System}}} |
Crystal structure | |
Deliquescence humidity 20°C | |
Solubility (g/l) at 20°C | |
Density (g/cm³) | 2.20 g/cm3 |
Molar volume | 111.4 cm3/mol |
Molar weight | 245.1 g/mol |
Transparency | transparent |
Cleavage | perfect |
Crystal habit | |
Twinning | |
Phase transition | |
Chemical behavior | |
Comments | can be produced from an aqueous solution of Na2SO4 and NaNO3 at 14-50°C |
Crystal Optics | |
Refractive Indices | nx = 1.391 ny = 1.481 nz = 1.486 |
Birefringence | Δ = 0.095 |
Optical Orientation | negative |
Pleochroism | |
Dispersion | |
Used Literature | |
{{{Literature}}} |
back to Sulfate
References[edit]
- ↑ http://webmineral.com/data/Darapskite.shtml viewed on 29/07/2010
- ↑ http://www.mindat.org/min-1226.html viewed on 29/07/2010
- ↑ <bib id="JCPDS:1991">