Antarcticite: Difference between revisions
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{{Infobox_Salt | {{Infobox_Salt | ||
|Footnote = <ref>http://webmineral.com/data/Antarcticite.shtml viewed on 29/07/2010</ref><ref>http://www.mindat.org/min-251.html viewed on 29/07/2010</ref> | |Footnote = <ref>http://webmineral.com/data/Antarcticite.shtml viewed on 29/07/2010</ref><ref>http://www.mindat.org/min-251.html viewed on 29/07/2010</ref> | ||
|photo = HJS Ca(Cl)2 100903-10-7.jpg|300px | |photo = [[Image:HJS Ca(Cl)2 100903-10-7.jpg|300px]] | ||
|mineralogical_Name =Antarcticite | |mineralogical_Name =Antarcticite | ||
|chemical_Name = | |chemical_Name =Calcium chloride hexahydrate | ||
|Trivial_Name = | |Trivial_Name = | ||
| | |chemical_Formula =CaCl<sub>2</sub>•6H<sub>2</sub>O | ||
|Hydratforms = | |Hydratforms =CaCl<sub>2</sub>•2H<sub>2</sub>O ([[Sinjarite]]) <br> CaCl<sub>2</sub>•4H<sub>2</sub>O ([[Calcium chloride tetrahydrate]]) | ||
| | |Crystal_System =trigonal | ||
|Deliqueszenzhumidity = | |Crystal_Structure = | ||
|Solubility = | |Deliqueszenzhumidity =33.3% | ||
|Density =1 | |Solubility = 6.712 mol/kg | ||
|MolVolume =128 | |Density =1.71 g/cm³ | ||
|Molweight =219 | |MolVolume =128.0 cm<sup>3</sup>/mol | ||
|Molweight =219.07 g/mol | |||
|Transparency =transparent | |Transparency =transparent | ||
|Cleavage =perfect | |Cleavage =perfect | ||
|Crystal_Habit = | |Crystal_Habit = | ||
|Twinning = | |Twinning = | ||
|Refractive_Indices =n<sub>o</sub> =1 | |Refractive_Indices =n<sub>o</sub> =1.417-1.494<br>n<sub>e</sub> = 1.393-1.550 | ||
|Birefringence =Δ= 0 | |Birefringence =Δ= 0.024 | ||
|optical_Orientation = | |optical_Orientation =negative | ||
|Pleochroism = | |Pleochroism = | ||
|Dispersion = | |Dispersion = | ||
|Phase_Transition = | |Phase_Transition = | ||
|chemBehavior = | |chemBehavior = | ||
|Comments = | |Comments =hygroscopic and deliquescent | ||
|Literature =<bib id="Steiger.etal:2014"/> <bib id="Broul.etal:1981"/> | |||
}} | }} | ||
==Hygroscopicity== | |||
<br clear=all> | |||
{|border="2" cellspacing="0" cellpadding="4" width="52%" align="left" class="wikitable" | |||
|+''Table 1: Deliquescence humidities of antarcticite at different round temperatures <bib id="Steiger.etal:2014"/>'' | |||
|- | |||
|bgcolor = "#F0F0F0" align=center| 0°C | |||
|bgcolor = "#F0F0F0" align=center| 10°C | |||
|bgcolor = "#F0F0F0" align=center| 20°C | |||
|bgcolor = "#F0F0F0" align=center| 30°C | |||
|bgcolor = "#F0F0F0" align=center| 40°C | |||
|bgcolor = "#F0F0F0" align=center| 50°C | |||
|- | |||
|bgcolor = "#FFFFEO" align=center| 44.3%r.h. | |||
|bgcolor = "#FFFFEO" align=center| 39.4%r.h. | |||
|bgcolor = "#FFFFEO" align=center| 33.3%r.h. | |||
|bgcolor = "#FFFFEO" align=center| 21.6%r.h. (CaCl<sub>2</sub>•4H<sub>2</sub>O) | |||
|bgcolor = "#FFFFEO" align=center| 18.4%r.h. (CaCl<sub>2</sub>•4H<sub>2</sub>O) | |||
|bgcolor = "#FFFFEO" align=center| 16.3%r.h. (CaCl<sub>2</sub>•2H<sub>2</sub>O) | |||
|} | |||
<br clear=all> | |||
==Weblinks== | ==Weblinks== | ||
<references/> | <references/> | ||
== Literature== | |||
<biblist/> | |||
[[Category:Antarcticite]][[Category:Chloride]][[Category:Salt]][[Category: | [[Category:Antarcticite]][[Category:Calcium chloride]][[Category:Chloride]][[Category:Salt]][[Category:Complete]][[Category:List]] | ||
Latest revision as of 12:14, 17 March 2015
back to Chloride
| Antarcticite[1][2] | |
2_100903-10-7.jpg)
| |
| Mineralogical name | Antarcticite |
| Chemical name | Calcium chloride hexahydrate |
| Trivial name | |
| Chemical formula | CaCl2•6H2O |
| Other forms | CaCl2•2H2O (Sinjarite) CaCl2•4H2O (Calcium chloride tetrahydrate) |
| Crystal system | trigonal |
| Crystal structure | |
| Deliquescence humidity 20°C | 33.3% |
| Solubility (g/l) at 20°C | 6.712 mol/kg |
| Density (g/cm³) | 1.71 g/cm³ |
| Molar volume | 128.0 cm3/mol |
| Molar weight | 219.07 g/mol |
| Transparency | transparent |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | hygroscopic and deliquescent |
| Crystal Optics | |
| Refractive Indices | no =1.417-1.494 ne = 1.393-1.550 |
| Birefringence | Δ= 0.024 |
| Optical Orientation | negative |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| [Steiger.etal:2014]Title: Weathering and Deterioration Author: Steiger, Michael; Charola A. Elena; Sterflinger, Katja  [Broul.etal:1981]Title: Solubility in organic two component systemsAuthor: Broul M., Nyvlt J.; Soehnel O.
| |
Hygroscopicity[edit]
| 0°C | 10°C | 20°C | 30°C | 40°C | 50°C |
| 44.3%r.h. | 39.4%r.h. | 33.3%r.h. | 21.6%r.h. (CaCl2•4H2O) | 18.4%r.h. (CaCl2•4H2O) | 16.3%r.h. (CaCl2•2H2O) |
Weblinks[edit]
- ↑ http://webmineral.com/data/Antarcticite.shtml viewed on 29/07/2010
- ↑ http://www.mindat.org/min-251.html viewed on 29/07/2010
Literature[edit]
| [Broul.etal:1981] | Elsevier (eds.) Broul M., Nyvlt J.; Soehnel O. (1981): Solubility in organic two component systems, Elsevier | |
| [Steiger.etal:2014] | Steiger, Michael; Charola A. Elena; Sterflinger, Katja (2014): Weathering and Deterioration. In: Siegesmund S.; Snethlage R. (eds.): Stone in Architecture, Springer Verlag Berlin Heidelberg, 223-316, 10.1007/978-3-642-45155-3_4. | |