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Fig. 10

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Summary of the different H2CO desorption experiments performed, including the derived desorption energies (the Arrhenius equation pre-exponential factor being fixed to 1028 molec cm-2 s-1) of each experiment. (i.) H2CO multilayer sample; (ii.) sub-monolayer of H2CO on top of a compact amorphous ice surface; (iii.) sub-monolayer of H2CO on top of a silicate surface; (iv.) H2CO embedded in amorphous water ice.

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