A Dictionary of the Coal Tar Colours
A Dictionary of the Coal Tar Colours
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In our eReader you can find the full English version of the book. Read A Dictionary of the Coal Tar Colours 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 A Dictionary of the Coal Tar Colours
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Is known as Alizarine YCA (BRITISH ALIZAR- INE COMPANY), Alizarine G (BADISCHE), Alizarine SDG (MEISTER), Alizarine X (BAYER), Alizarine FA (LEVERKUS). See ALIZARINE. Fluorescein r R /CO. C (i H 3 . OH. \ ^ fiil <\ COC G H ;t OH. / is the base of the Eosin dyes. It is pre- pared by heating resoycin with phthalic anhydride to 200' J C. , and may therefore be called Resorcin Phthalein, and is analo- gous to phenol phthalein. It forms dark brown crystals, insoluble in water, but soluble in weak alkaline solutions to a red solution, which, when dilute, has a splendid yellowish green fluorescence. So- luble in alcohol, the solution has a green fluorescence. Dyes wool and silk yellow, and the shades have a faint fluorescence, but it has little tinctorial value, its dyeing power being weak, and the shades fugi- tive. Fluorescein Blue (SOCY. CHEM. IND. , BASLE. ) C 18 H 8 Br 6 N 2 5 NH 4 obtained by treating in potassium carbon- ate solution Diazoresorufin with Bromine, and precipitating with an acid.
What to read after A Dictionary of the Coal Tar Colours?
You can find similar books in the "Read Also" column, or choose other free books by George H George Henry Hurst to read online
To quickly assess the difficulty of the text, read a short excerpt:
Is known as Alizarine YCA (BRITISH ALIZAR- INE COMPANY), Alizarine G (BADISCHE), Alizarine SDG (MEISTER), Alizarine X (BAYER), Alizarine FA (LEVERKUS). See ALIZARINE. Fluorescein r R /CO. C (i H 3 . OH. \ ^ fiil <\ COC G H ;t OH. / is the base of the Eosin dyes. It is pre- pared by heating resoycin with phthalic anhydride to 200' J C. , and may therefore be called Resorcin Phthalein, and is analo- gous to phenol phthalein. It forms dark brown crystals, insoluble in water, but soluble in weak alkaline solutions to a red solution, which, when dilute, has a splendid yellowish green fluorescence. So- luble in alcohol, the solution has a green fluorescence. Dyes wool and silk yellow, and the shades have a faint fluorescence, but it has little tinctorial value, its dyeing power being weak, and the shades fugi- tive. Fluorescein Blue (SOCY. CHEM. IND. , BASLE. ) C 18 H 8 Br 6 N 2 5 NH 4 obtained by treating in potassium carbon- ate solution Diazoresorufin with Bromine, and precipitating with an acid.
What to read after A Dictionary of the Coal Tar Colours?
You can find similar books in the "Read Also" column, or choose other free books by George H George Henry Hurst to read online
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