The Natural Organic Colouring Matters
The Natural Organic Colouring Matters
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In our eReader you can find the full English version of the book. Read The Natural Organic Colouring Matters 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 Natural Organic Colouring Matters
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, 90, 251 (has shown that in all probability myricetin as a glucoside accompanies the antho- cyanin pigment Violanin ; a glucoside of Cl OH in the flowers of the purple-black viola (Sutton's " Black Knight "), an observation which is of considerable interest in connection with the relationship which exists between the flavonols and anthocyans.
COTTON FLOWERS.
Among the various portions of the cotton plant which have been industrially employed must be included the flowers which consti- tute one ...of the numerous Indian dyestuffs. According to Watt 223 THE NATURAL ORGANIC COLOURING MATTERS (" Dictionary of the Economic Products of India ") they are thus used in the Manipur district. Gossypetin was first isolated in small quantity from the flowers of the ordinary Indian cotton plant, G. Herbaceum (Perkin, Chem. Soc. Trans. , 1899, 75, 826), and has been more completely studied at a later period (ibid. , 1913, 103, 650). For its preparation a concentrated alcoholic extract of the flowers is treated with hot water and the mixture digested when boiling with addition of hydrochloric acid for three hours.
What to read after The Natural Organic Colouring Matters?
You can find similar books in the "Read Also" column, or choose other free books by Arthur George Perkin to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
, 90, 251 (has shown that in all probability myricetin as a glucoside accompanies the antho- cyanin pigment Violanin ; a glucoside of Cl OH in the flowers of the purple-black viola (Sutton's " Black Knight "), an observation which is of considerable interest in connection with the relationship which exists between the flavonols and anthocyans.
COTTON FLOWERS.
Among the various portions of the cotton plant which have been industrially employed must be included the flowers which consti- tute one ...of the numerous Indian dyestuffs. According to Watt 223 THE NATURAL ORGANIC COLOURING MATTERS (" Dictionary of the Economic Products of India ") they are thus used in the Manipur district. Gossypetin was first isolated in small quantity from the flowers of the ordinary Indian cotton plant, G. Herbaceum (Perkin, Chem. Soc. Trans. , 1899, 75, 826), and has been more completely studied at a later period (ibid. , 1913, 103, 650). For its preparation a concentrated alcoholic extract of the flowers is treated with hot water and the mixture digested when boiling with addition of hydrochloric acid for three hours.
What to read after The Natural Organic Colouring Matters?
You can find similar books in the "Read Also" column, or choose other free books by Arthur George Perkin to read onlineMoreLess
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