Sample
Name
Ammonium aluminium sulfate dodecahydrate (phase FE) powder - grains: 32-80µm
Thickness
3.5 $\pm$ 0.1 $mm$
Diameter
14.0 $mm$
Volume
542.6 $mm^3$
Mass
0.232 $\pm$ 0.002 $g$
Surface roughness
smooth
Substrate material
Aluminium
Substrate comments
cylindrical hole, diameter: 14 mm, depth: 3.5 mm
Comments
formed by solid-solid phase transition of a sample of Tschermigite mineral (PE phase)
Temperature
73.0 $\pm$ 0.5 $K$
Time at T
5.0 $min$
Temperature max
76.0 $\pm$ 1.0 $K$
Comments
recording of the spectrum takes 74 min
Type
purged air
Fluid temperature
73.0 $K$
Fluid pressure
0.0032 $bar$
Comments
pumped to 13 mbar at room T°. Air is partly dried by condensation of water at bottom of cooled cell
Number
1
Layers