Sample
Name
Ammonium hydrogen sulphate powder (Phase I) - grains: 125-150µm
Date
2021-11-04
Thickness
4.5 ± 0.1 mm
Diameter
18.0 mm
Volume
1145.0 mm3
Mass
1.165 ± 0.005 g
Surface roughness
smooth
Sample changes
partly transformed to phase II of Ammonium hydrogen sulphate during warming to 161K
Substrate material
Aluminium
Substrate comments
cylindrical hole, diameter: 18 mm, depth: 4.5 mm
Comments
formed from phase phase II below 160K
Temperature
161.0 ± 0.5 K
Comments
recording of the spectrum takes 82 min
Type
molecular gas
Fluids
Fluid temperature
161.0 K
Fluid pressure
10.0 mbar
Comments
high purity N2 gas
Number
1
Layers