Definition of Wurster's salt
: any of several deeply colored semiquinones formed by partial oxidation (as with bromine) of the conjugate acid of para-phenylenediamine or its N-alkyl derivatives: such as a or Wurster's red or Wurster's red salt : a red product made from N,N-dimethyl-para-phenylenediamine b or Wurster's blue or Wurster's blue salt : a blue product made from tetramethyl-para-phenylenediamine
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Origin and Etymology of wurster's salt
after C. Wurster fl1805 German chemist
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