Nahcolite: Difference between revisions

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|Deliqueszenzhumidity =
|Deliqueszenzhumidity =
|Solubility          =96 g/l
|Solubility          =96 g/l
|Density              =2,2 g/cm³
|Density              =2.2 g/cm³
|MolVolume            =37,99 cm3/mol
|MolVolume            =37.99 cm3/mol
|Molweight            =84,01 g/mol
|Molweight            =84.01 g/mol
|Transparency        =transparent to translucent
|Transparency        =transparent to translucent
|Cleavage            =perfect
|Cleavage            =perfect
|Crystal_Habit        =
|Crystal_Habit        =
|Twinning            =
|Twinning            =
|Refractive_Indices  =n<sub>x</sub> = 1,376<br>n<sub>y</sub> = 1,500<br>n<sub>z</sub> = 1,582
|Refractive_Indices  =n<sub>x</sub> = 1.376<br>n<sub>y</sub> = 1.500<br>n<sub>z</sub> = 1.582
|Birefringence        =Δ = 0,206
|Birefringence        =Δ = 0.206
|optical_Orientation  =biaxial negative
|optical_Orientation  =biaxial negative
|Pleochroism          =
|Pleochroism          =

Revision as of 15:00, 20 December 2011

Nahcolite[1][2]
Mineralogical name Sodium hydrogen carbonate
Chemical name Nahcolite
Trivial name
Chemical formula NaHCO3
Other forms
Crystal system monoclinic
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C 96 g/l
Density (g/cm³) 2.2 g/cm³
Molar volume 37.99 cm3/mol
Molar weight 84.01 g/mol
Transparency transparent to translucent
Cleavage perfect
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments pH about 8
Crystal Optics
Refractive Indices nx = 1.376
ny = 1.500
nz = 1.582
Birefringence Δ = 0.206
Optical Orientation biaxial negative
Pleochroism
Dispersion
Used Literature
{{{Literature}}}


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