naphthalenedisulfonic acid

noun

naph·​tha·​lene·​disulfonic acid

"+…-

: any of several disulfonic acids C₁₀H₆(SO₃H)₂ derived from naphthalene and used especially in the form of hydroxy and amino derivatives (as chromotropic acid, H acid, G acid, R acid) as dye intermediates

Word History

Etymology

naphthalene + disulfonic

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