Antarcticite

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Antarcticite[1][2]
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% [Steiger etal: 2014]Title: Weathering and Deterioration
Author: Steiger, Michael; Charola A. Elena; Sterflinger, Katja
Link to Google Scholar
Solubility (g/l) at 20°C 5360 g/l
Density (g/cm³) 1.68 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
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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]

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