The rate of removal and uptake of guests into layered and porous materials is important in many areas of materials chemistry.
Here we report on the use of atmospheric thermogravimetry linked to a mass spectrometer (TG-MS) to investigate the thermal
characteristics of three different solids. We show that (i) the desorption of cyclohexylamine from the surface of a pillared
acid activated smectite clay occurs in two stages, indicating two possible acidic binding sites, (ii) TG-MS is an extremely
sensitive technique for probing progressive anion exchange of lithium aluminium layered double hydroxides, (iii) on heating,
the perhydrate 4Na2SO4·NH4Cl·2H2O2 releases H2O2 intact.