01 n. The sodium salt of a sulphonic acid of a naphthol, C10H5(OH)(NH2)SO3Na used as a developer.
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1.
The sodium salt of a sulphonic acid of a naphthol, C10H5(OH)(NH2)SO3Na used as a developer.(Photog. & Chem.)
Entry
1 sense
Webster, 1913
Eikonogen
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