Darapskite: Difference between revisions

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Revision as of 15:17, 20 December 2011

Darapskite[1][2]
Darapskit-19082010-klein.jpg
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)
Molar volume 111.4 cm3/mol
Molar weight 245 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}}}


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Weblinks[edit]