Bischofite: Difference between revisions

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{{Infobox_Salt
{{Infobox_Salt
|Footnote            = <ref> http://webmineral.com/data/Bischofite.shtml  viewed on 29/07/2010</ref><ref> http://www.mindat.org/min-681.html  viewed on 29/07/2010</ref>
|Footnote            = <ref> http://webmineral.com/data/Bischofite.shtml  viewed on 29/07/2010</ref><ref> http://www.mindat.org/min-681.html  viewed on 29/07/2010</ref> <ref><bib id="Broul.etal:1981"></ref>
|photo                = <!-- [[Image:"file name"|300px]]-->
|photo                = <!-- [[Image:"file name"|300px]]-->
|mineralogical_Name  = Bischofite
|mineralogical_Name  = Bischofite
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|Crystal_System      =monoclinic
|Crystal_System      =monoclinic
|Crystal_Structure =
|Crystal_Structure =
|Deliqueszenzhumidity =33.1% <bib id="Steiger etal: 2014"/>
|Deliqueszenzhumidity =33.1%
|Solubility          = 543 g/l
|Solubility          = 543 g/l
|Density              =1.56 g/cm<sup>3</sup>
|Density              =1.57 g/cm<sup>3</sup>
|MolVolume            =129.6 cm<sup>3</sup>/mol
|MolVolume            =129.6 cm<sup>3</sup>/mol
|Molweight            =203.33 g/mol
|Molweight            =203.30 g/mol
|Transparency        =transparent to translucent
|Transparency        =transparent to translucent
|Cleavage            =none
|Cleavage            =none
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<br clear=all>  
<br clear=all>  
{|border="2" cellspacing="0" cellpadding="4" width="52%" align="left" class="wikitable"
{|border="2" cellspacing="0" cellpadding="4" width="52%" align="left" class="wikitable"
|+''Table 1: Deliquescence humidities of bischofite at different roud temperatures <bib id="Steiger etal: 2014"/>''                     
|+''Table 1: Deliquescence humidities of bischofite at different roud temperatures <bib id="Steiger.etal:2014"/>''                     
|-
|-
|bgcolor = "#F0F0F0" align=center| 0°C  
|bgcolor = "#F0F0F0" align=center| 0°C  

Revision as of 14:28, 6 February 2015

Bischofite[1][2] [3]
Mineralogical name Bischofite
Chemical name Magnesium chloride hexahydrate
Trivial name
Chemical formula MgCl2•6H2O
Other forms
Crystal system monoclinic
Crystal structure
Deliquescence humidity 20°C 33.1%
Solubility (g/l) at 20°C 543 g/l
Density (g/cm³) 1.57 g/cm3
Molar volume 129.6 cm3/mol
Molar weight 203.30 g/mol
Transparency transparent to translucent
Cleavage none
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments decomposes at 116-118°C
hygroscopic and deliquescent
Crystal Optics
Refractive Indices nx =1.494
ny = 1.507
nz = 1.528
Birefringence Δ = 0.034
Optical Orientation positive
Pleochroism
Dispersion
Used Literature
{{{Literature}}}


back to Chloride

Hygroscopicity[edit]


Table 1: Deliquescence humidities of bischofite at different roud temperatures [Steiger.etal:2014]Title: Weathering and Deterioration
Author: Steiger, Michael; Charola A. Elena; Sterflinger, Katja
Link to Google Scholar
0°C 10°C 20°C 30°C 40°C 50°C
34.1%r.h. 33.7%r.h. 33.1%r.h. 32.4%r.h. 31.5%r.h. 30.5%r.h.


Weblinks[edit]

  1. http://webmineral.com/data/Bischofite.shtml viewed on 29/07/2010
  2. http://www.mindat.org/min-681.html viewed on 29/07/2010
  3. <bib id="Broul.etal:1981">

Literature[edit]

[Steiger etal: 2014]Steiger, Michael; Charola A. Elena; Sterflinger, Katja (2014): Weathering and Deterioration. In:: Stone in Architecture, Siegesmund S. and Snethlage R., 10.1007/978-3-642-45155-3_4.Link to Google Scholar