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Anhydrite is the anhydrous form of [[gypsum]], CaSO₄, to which it readily transforms with t

'''Pyrolysis [[gas chromatography]]''' (Py-GC) is anhydrous thermal decomposition of a material that leads to the conversion of [[kerog

Members may be prepared in the laboratory by the heating anhydrous sodium ethanoate with an alkali, e.g. soda lime (preparation of methane).<r

...Rock-Eval pyrolysis. Whole-rock Rock-Eval samples are heated rapidly in an anhydrous environment. Geological burial processes cause clays to undergo physical an

* ''Potash [[Evaporite]]s''. Sylvite is anhydrous with a near-zero neutron porosity, but carnallite (KMgCl₃ • 6H