Antarcticite

From Saltwiki
Jump to navigation Jump to search
Antarcticite[1][2] [3]
HJS Ca(Cl)2 100903-10-7.jpg
Mineralogical name Antarcticite
Chemical name Calcium chloride hexahydrate
Trivial name
Chemical formula CaCl2•6H2O
Other forms
Crystal system trigonal
Crystal structure
Deliquescence humidity 20°C 33.3%
Solubility (g/l) at 20°C 5360 g/l
Density (g/cm³) 1.71 g/cm³
Molar volume 128.0 cm3/mol
Molar weight 219.08 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
{{{Literature}}}


back to Chloride

Hygroscopicity[edit]


Table 1: Deliquescence humidities of antarcticite at different round 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
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]

  1. http://webmineral.com/data/Antarcticite.shtml viewed on 29/07/2010
  2. http://www.mindat.org/min-251.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