Crossword clues for naphthol
The Collaborative International Dictionary
Naphthol \Naph"thol\, n. [Naphthalene + -ol.] (Chem.) Any one of a series of hydroxyl derivatives of naphthalene, analogous to phenol. In general they are crystalline substances with a phenol (carbolic) odor.
Naphthol blue, Naphthol orange, Naphthol yellow (Chem.), brilliant dyestuffs produced from certain complex nitrogenous derivatives of naphthol or naphthoquinone.
Wiktionary
n. (context organic compound English) Either of two isomeric phenols derived from naphthalene; they are used in the preparation of dyes and many other compounds
WordNet
n. either of two phenols derived from naphthalene
Wikipedia
Naphthol may refer to:
- 1-Naphthol
- 2-Naphthol
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Usage examples of "naphthol".
It includes Alkali Blue, Naphthylamine Blacks, Naphthol Green B, Indian Yellow, Croceine A Z, Croceine Orange, Orange R, Brilliant Croceine M, Rose Bengale, Thiocarmine R, Soluble Blue, Formyl Violet S 4 B, Acid Green, Croceine Orange G, Carmoisin, Acid Violet 5 B, Fast Acid Violet 10 B, Fast Green Bluish, Rhodamine, Silk Blue, Victoria Black, Archil, Turmeric, Safranine, Auramine, Quinoline Yellow, Azoflavine, Victoria Blue and Bismarck Brown.
The Naphthol Blacks have long been used in wool dyeing, and give excellent results, the 3 B brand dyeing much bluer shades than the B brand.
O, Acid Magenta, Indigo Extract, Phloxine, Naphthol Yellow, Orange G G, Scarlet S, Azo Red A, Eosines, Thiocarmine R, Naphthol Black B B, New Victoria Black Blue, Erythrosine, and Roccelline.
Acid black, Naphthol black, Naphthol green, Nigrosine, Fast blue, Water blue, and some others dyed in an acid bath, but little more than half the dye used on unchlored wool is required, while with Induline, more even and intense shades are obtained than is otherwise possible.
Indigo extract, Cochineal, Acid Magenta, Picric acid, Naphthol Yellow, and Tartrazine dye the wool only at the boil.
The Naphthol Blacks will also be found useful in the same way, while the greys from Anthracene Chrome Blacks and the Alizarine blacks are very good and fast.
Gambine, Dinitroso-resorcine, Alizarine Green, Brilliant Green, Malachite Green, Azo Green, Fast Green, Naphthol Green, Acid Green, Diamine Green, Benzo Green almost exhaust the list.