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Schaeffer's acid

noun
Schaef·fer's acid
variants: or Schäffer's acid \ˈshāfə(r)z- \

Definition of Schaeffer's acid 

: a crystalline naphtholsulfonic acid HOC10H6SO3H used as a dye intermediate; 2-naphthol-6 sulfonic acid

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History and Etymology for Schaeffer's acid

after L. Schaeffer, 19th century German chemist

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