The Chemistry of Dyestuffs a Manual for Students of Chemistry And Dyeing
The Chemistry of Dyestuffs a Manual for Students of Chemistry And Dyeing
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In our eReader you can find the full English version of the book. Read The Chemistry of Dyestuffs a Manual for Students of Chemistry And Dyeing Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Chemistry of Dyestuffs a Manual for Students of Chemistry And Dyeing
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If the alkyl halides are attached to the chromophore, then as a rule the colour is intensified, e. G. , acridine is colour- less and its methyl iodide addition product is red.
Acylation (e. G. , Acetylation and Benzoylation) always gives hypsochrome properties, whether acting upon amines or hydroxy groups. In homologous series an increase in molecular weight is accompanied by increased intensity of colour, and the introduction of alkyl groups into ring compounds shows that these groups possess ...a bathochrome character. The naphthalene derivatives are more intensely coloured than the corresponding benzene derivatives. Halogenation is accompanied as a rule with bathochrome functions. The intensification is not proportional to the number of halogen groups introduced, but the position of the halogen groups is important. The sul phonic acid group to a mild degree acts both as batho- and as hypso-chrome.
From what has been stated already, it will be under- stood that what is called the quinonoid theory of colour, while it does not deny much that is assumed by the * chromophore theory, definitely, attempts to relate the structure of dyes to either ortho- or para-quinones.
What to read after The Chemistry of Dyestuffs a Manual for Students of Chemistry And Dyeing?
You can find similar books in the "Read Also" column, or choose other free books by M Fort to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
If the alkyl halides are attached to the chromophore, then as a rule the colour is intensified, e. G. , acridine is colour- less and its methyl iodide addition product is red.
Acylation (e. G. , Acetylation and Benzoylation) always gives hypsochrome properties, whether acting upon amines or hydroxy groups. In homologous series an increase in molecular weight is accompanied by increased intensity of colour, and the introduction of alkyl groups into ring compounds shows that these groups possess ...a bathochrome character. The naphthalene derivatives are more intensely coloured than the corresponding benzene derivatives. Halogenation is accompanied as a rule with bathochrome functions. The intensification is not proportional to the number of halogen groups introduced, but the position of the halogen groups is important. The sul phonic acid group to a mild degree acts both as batho- and as hypso-chrome.
From what has been stated already, it will be under- stood that what is called the quinonoid theory of colour, while it does not deny much that is assumed by the * chromophore theory, definitely, attempts to relate the structure of dyes to either ortho- or para-quinones.
What to read after The Chemistry of Dyestuffs a Manual for Students of Chemistry And Dyeing?
You can find similar books in the "Read Also" column, or choose other free books by M Fort to read onlineMoreLess
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