The Life of Sir Humphry Davy, Bart. LL.D., Late President of the Royal Society, Foreign Associate of the Royal Institute of France, &c. &c. &c, Volume 1Henry Colburn and Richard Bentley, 1831 - 547 pages |
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Page 166
... general store . In the Royal Institution Journal already noticed , we find several communications from him , under the titles of " Observations on different methods of obtaining Gallic Acid ; " - " On the processes 166 THE LIFE OF.
... general store . In the Royal Institution Journal already noticed , we find several communications from him , under the titles of " Observations on different methods of obtaining Gallic Acid ; " - " On the processes 166 THE LIFE OF.
Page 167
... gallic acid , and extractive matter . In at- tempting to ascertain the relative proportions of tannin contained in different infusions , Davy was led , after various trials , to prefer the generally re- ceived method of precipitating by ...
... gallic acid , and extractive matter . In at- tempting to ascertain the relative proportions of tannin contained in different infusions , Davy was led , after various trials , to prefer the generally re- ceived method of precipitating by ...
Page 168
... gallic acid . It is true that æther will dissolve the latter , without exerting much action upon the former ; but then , he adds , whenever the gallic acid is in large quan- tities , this method will fail , " in consequence of that ...
... gallic acid . It is true that æther will dissolve the latter , without exerting much action upon the former ; but then , he adds , whenever the gallic acid is in large quan- tities , this method will fail , " in consequence of that ...
Page 169
... ( gallic acid and extractive matter ) , he employed the solutions of the salts of alumina and those of the peroxidated salts of iron . The former of these precipitates extractive , without materially acting upon gallic acid , which is ...
... ( gallic acid and extractive matter ) , he employed the solutions of the salts of alumina and those of the peroxidated salts of iron . The former of these precipitates extractive , without materially acting upon gallic acid , which is ...
Page 170
... gallic acid , but their in- fusions gave , on evaporation , tannin and extractive . The greater number of his experiments were made on the barks of the oak , the Leicester willow , the Spanish chestnut , the elm , and the common willow ...
... gallic acid , but their in- fusions gave , on evaporation , tannin and extractive . The greater number of his experiments were made on the barks of the oak , the Leicester willow , the Spanish chestnut , the elm , and the common willow ...
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action Agriculture alkali alluded ammonia amongst animal appear ascertained Bakerian Lecture barytes beautiful Beddoes bodies carbonic acid charcoal chemical chemist Chemistry chlorine circumstances Clayfield combination combustion common compound connected considered containing Cornwall DAVIES GIDDY Davy's decomposed decomposition discovered discovery duced earth effect electricity elements enquiry excited experiments fact feelings fluid gallic acid galvanic genius Gilbert heat hope HUMPHRY DAVY hydrogen laboratory labour light lime magnesia manner manure matter memoir ments mercury metallic mind mineral minute muriatic acid nature nitrogen nitrous gas nitrous oxide observed obtained occasion opinion oxygen oxymuriatic acid paper peculiar Penzance phenomena philosopher phosphorus plants potash potassium present principles produced proportion pure Purkis quantity received rendered respiration Royal Institution Royal Society says scientific soil solution substances sulphate sulphur surface talents tannin theory tion truth vegetable Voltaic Voltaic pile