Potash

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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A phase is a physically distinctive form of matter and is characterized by having relatively uniform chemical and physical properties.