If s-naphthylamine and 0-naphthol be reduced, tetrahydro products are obtained in which the aminoor oxy-bearing half of the molecule becomes aliphatic in character. [Please select]
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From naphthalene, either naphthylamine (a body like aniline) or naphthol (resembling phenol) may be prepared. [Please select]
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Naphthol Yellow is of course a naphthol colour, whilst Vermilline Scarlet is a dye containing both naphthylamine and naphthol. [Please select]
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Bead Holliday & Sons; the Naphthol and Naphthylamine Blacks of Leopold Cassella & Co. [Please select]
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=Naphthylamine ether= is used as a developer for blues in conjunction with the Diamine blacks. [Please select]
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Naphthylamine ether is also sent out in the form of a paste mixed with acid, and containing about 25 per cent. [Please select]
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Developer B (Bayer) is ethyl beta-naphthylamine, in the form of its hydrochloric acid compound. [Please select]
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These amido compounds, of which aniline, toluidine, benzidine, naphthylamine are familiar examples, are characterised by containing the molecular group NH{2}, which radicle is built up of the two elements nitrogen and hydrogen. [Please select]
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Sometimes two developers are mixed together, in which case care should be taken that an alkaline developer naphthol or phenol be not mixed with an acid developer (phenylene diamine, naphthylamine, etc.) [Please select]
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