Epsomite: Difference between revisions

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|Crystal_System      = orthorhombic
|Crystal_System      = orthorhombic
|Crystal_Structure    =
|Crystal_Structure    =
|Deliqueszenzhumidity = 90,1
|Deliqueszenzhumidity = 90,1% (20°C), 94% (30°C)
|Solubility          = 710 g/l
|Solubility          = 710 g/l
|Density              = 146,8 cm<sup>3</sup>/mol  
|Density              = 146,8 cm<sup>3</sup>/mol  

Revision as of 09:50, 7 July 2011

Epsomite[1][2]
HJS MgSO4 092503-2.jpg
Mineralogical name Epsomite
Chemical name Magnesiumsulphate Heptahydrate
Trivial name Bitter Salts, Reichardtite, Seelandite
Chemical formula MgSO4•7H2O
Other forms Kieserite (MgSO4•H2O)
Sanderite (MgSO4•2H2O)
Starkeyite (MgSO4•4H2O)
Pentahydrite(MgSO4•5H2O)
Hexahydrite (MgSO4•6H2O)
Meridianite (MgSO4•11H2O)
Magnesium 12-Hydrate
Crystal system orthorhombic
Crystal structure
Deliquescence humidity 20°C 90,1% (20°C), 94% (30°C)
Solubility (g/l) at 20°C 710 g/l
Density (g/cm³) 146,8 cm3/mol
Molar volume 246,48 g/mol
Molar weight 1,67 g/cm3
Transparency transparent to translucent
Cleavage perfect
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments can by produced from an aqueous solution under 50°C
Crystal Optics
Refractive Indices nx = 1,433
ny = 1,455
nz = 1,461
Birefringence Δ = 0,028
Optical Orientation biaxial negative
Pleochroism
Dispersion
Used Literature
{{{Literature}}}


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