Definition of Nigrosines
1. nigrosine [n] - See also: nigrosine
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Lexicographical Neighbors of Nigrosines
Literary usage of Nigrosines
Below you will find example usage of this term as found in modern and/or classical literature:
1. Manual of Chemical Technology by Johannes Rudolf Wagner (1904)
"... and nigrosines are included a series of colouring matters formed by the action of certain nitro- and azo-compounds upon aromatic amines and having all ..."
2. Chemistry of the Organic Dye-stuffs by Rudolf Nietzki (1892)
"The nigrosines are prepared by heating a mixture of nitrobenzene, aniline, hydrochloric acid, and iron filings to 180°-220°. The colour of the mixture ..."
3. Chemistry of Dye-stuffs by Georg von Georgievics (1903)
"chloride with nitrobenzol) was applied to the preparation of nigrosines (grey ... According to Wolff, nigrosines can also be prepared by oxidising aniline ..."
4. The Chemistry of the Coal-tar Colours by Rudolf Benedikt (1889)
"Indu- lines and nigrosines yield very fast colours. Detection on the fibre. — The colours resist the action of acids. Hydrochloric acid turns it, indeed, ..."
5. The Encyclopedia Americana: A Library of Universal Knowledge (1918)
"The gray dye- stuffs known as nigrosines belong to this group. Indigo and Indigoid Dyestuffs.— The production synthetically of ..."
6. A Treatise on Chemistry by Henry Enfield Roscoe, Carl Schorlemmer (1887)
"The nigrosines, which also give blue-black shades, are formed when, instead of iron filings, oxidizing agents such as arsenic acid, stannic chloride, &c., ..."