Material
Name
Ammonium sulfate
Origin
commercial
Abundance in layer
Relevance
main - major
Mass fraction
0.23
Abundance comments
This abundance value is an upper value, because some amount of ammonium salt (but probably very little) may have sublimated with the water ice during preparation of this sublimate residue. Massic abundance lower or equal to about 23 wt%. Volumetric abundance lower or equal to about 44 vol%.
Size method
The salt probably plays the role of a cement of sub-micrometer size, located between the grains of pyrrhotite, as suggested by Scanning Electron Microscopy images.
Number
1
Arrangement
single phase
  Name Compound type Arrangement Mass ($g$) Mass fraction Adsorbat name
Ammonium sulfate sulfate single phase 1.0 $\pm$ 0.0