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...arx employed a [[labour theory of value]], which holds that the value of a commodity is the [[socially necessary labour time]] invested in it. In this model, [[ ...ure the social relationships and processes of production; he called this [[commodity fetishism]]. People are highly aware of commodities, and usually don't thin ...

Alkynylation is used to prepare commodity chemicals such as [[propargyl alcohol]],<ref name=Viehe /><ref name=Ullmann /> [[buty ...

...ioxide]], etc.) into sustainable fuels (or energy vectors) and value-added chemicals. It encompasses a set of ideas focused on solar solar energy.<ref name=":0 ...and [[Polyethylene terephthalate|PET plastics]]) to selective value-added chemicals with the simultaneous generation of [[green hydrogen]], and achieving areal ...

...a marketable commodity. The development effort for these rather expensive chemicals is relatively high because of changing commercial availability among other ...

...olymer]]s. However, global polymer production is dominated by a range of [[commodity plastics]] which account for the majority of [[waste plastic|plastic waste] ...ef> Despite this PET has better resistance to photo-oxidation than other [[commodity plastics]], this is due to a poor [[quantum yield]] or the absorption.<ref> ...