Layer
Name
Layer #1
Type of layer
granular
Mass
23.5081 ± 1.5005 g
Texture
sintered granular
Type of porosity
porous
Porosity
0.527 ± 0.02
Density
0.74 ± 0.03 g.cm3
Comments
sublimating sample with an initial thickness of 20mm decreasing with time
Formation mode
manual deposition
Temperature
195.0  ± 5.0  K
Comments
The sample is prepared in an initially Liquid N2 cooled cell (> 77 K) but CO2 ice is at 195 K. Slight manual compression on the sample
Number
5
Arrangement
homogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Anthracene powder 0.3 0.0022311
Phenanthrene-d10 powder 0.3 0.0022311
Pyrene powder 0.3 0.0022311
CO2 snow 0.99300201
H2O ice impurity 0.00029799 small but strongly variable H2O ice impurity due to water vapor condensation on CO2 snow.