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A compound of carbon with an element more electropositive than itself, for example, CaC2, calcium carbide.


a binary compound of carbon. The various compounds range in stability from explosive copper or silver carbides to hard abrasive compounds, such as silicon carbide.
References in periodicals archive ?
Considering that quinone methides are the resonance hybrids between the quinoid and benzenoid structures, and their high reactivity to electrophiles and nucleophiles, it is evident that the polycondensation mechanism in all catalytic conditions can be explained by their participation.
The resol type phenolic resin prepared by the reaction of phenol and formaldehyde in alkaline conditions comprised complicated mixtures of mono- or polynuclear hydroxymethyl phenols (6, 7) and para-quinone methides (8).
Figueiredo JN, Raz B, Sequin U (1998) Novel quinone methides from Salacia kraussii with in vitro antimalarial activity.
Phenolic resin prepared by the reaction of phenols and formaldehyde under alkaline conditions comprises complicated mixtures of mononuclear or polynuclear hydroxymethyl phenols (9, 10) and para-quinone methides (11).

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