The Chemical News and Journal of Physical Science, Volumes 29-30Griffin, Bohn and Company, 1874 |
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Page 189
... tannin . If all the weights and volumes above mentioned are observed , 125 , divided by the number of c.c. of tea solu- tion used , will give the percentage of tannin , & c . , in the sample . We have ascertained that prolonged boiling ...
... tannin . If all the weights and volumes above mentioned are observed , 125 , divided by the number of c.c. of tea solu- tion used , will give the percentage of tannin , & c . , in the sample . We have ascertained that prolonged boiling ...
Page 241
... Tannin , Gallic Acid , and Pyro- gallic Acid.-M. M. Prud'homme . - Prepare a solution of methyl green in powder , 2 grms . per litre of water . solution of tannin is 20 grms . per litre . The standard test - liquor employed is a ...
... Tannin , Gallic Acid , and Pyro- gallic Acid.-M. M. Prud'homme . - Prepare a solution of methyl green in powder , 2 grms . per litre of water . solution of tannin is 20 grms . per litre . The standard test - liquor employed is a ...
Page 17
... tannin liquor - in three suc- cessive experiments , 16 , 17 , and 16 degrees of the burette , which corresponds to 57 per cent of tannin . But this figure 57 represents , not only tannin , but every other substance capable of ...
... tannin liquor - in three suc- cessive experiments , 16 , 17 , and 16 degrees of the burette , which corresponds to 57 per cent of tannin . But this figure 57 represents , not only tannin , but every other substance capable of ...
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acetic action adulteration alcohol alkaline alumina ammonia amount analysis aniline apparatus applied atomic weight bodies boiling bromine calcium carbonic acid caustic cent charcoal Chemical Notices Chemistry chemists chloric acid chloride coal colour compound condensed containing copper crystalline cymene decomposed decomposition determination dilute dissolved distilled effect ether evaporation examined experiments filtered filtrate flask formed furnace gases gives glass grms heat hydrate hydrochloric acid hydrogen Improvements insoluble iron lime liquid litre magnetic manufacture matter mercury metal method mineral mixed mixture nitrate nitric acid nitrogen Notices from Foreign observed obtained ordinary oxalic oxide oxygen paper pass phosphate phosphoric acid platinum portion potash potassium precipitate present pressure produced proportion pure quantity reaction residue salt sample sewage silicate silver Society soda sodium soluble solution specific gravity steam substances sulphate sulphide sulphuric acid surface tannin temperature thallium tion tube vapour washed zinc