Potash

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Potash
Mineralogical name Potash
Chemical name Potassium carbonate
Trivial name Potash
Chemical formula K2CO3
Other forms Potassium carbonate dihydrate (K2CO3 x 2H2O)
Potassium carbonate 1.5-hydrate (K2CO3 x 1.5H2O)
Crystal system monoclinic
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C 1120 g/l
Density (g/cm³) 2.43 g/cm³
Molar volume
Molar weight 138.21 g/mol
Transparency
Cleavage
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices nx = 1.426
ny = 1.531
nz = 1.541
Birefringence Δ = 0.015
Optical Orientation negative
Pleochroism
Dispersion
Used Literature


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