Journal of the American Chemical Society, Volume 24American Chemical Society, 1902 - Chemistry Features definitive articles and communications, as well as book and software reviews, covering all areas of chemistry. |
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Page 9
... liquid . The excess of ethyl iodide was driven . off and the residue dissolved in boiling alcohol . It was filtered ... liquids . Successive crops were obtained and all the combined . fractions recrystallized from the same solvents ...
... liquid . The excess of ethyl iodide was driven . off and the residue dissolved in boiling alcohol . It was filtered ... liquids . Successive crops were obtained and all the combined . fractions recrystallized from the same solvents ...
Page 13
... liquids that had been washed with ether for the removal of alkaloids were reserved as long as they possessed a yellow color . After acidulating this liquid with acetic acid and concentrating to smaller volume it was found that a curdy ...
... liquids that had been washed with ether for the removal of alkaloids were reserved as long as they possessed a yellow color . After acidulating this liquid with acetic acid and concentrating to smaller volume it was found that a curdy ...
Page 16
... liquid light colored and almost transparent . The latter was filtered into a 20 liter ice - jar and set aside in a cool place . After a few hours very light , fluffy , voluminous hemispherical masses of fine needles began to separate on ...
... liquid light colored and almost transparent . The latter was filtered into a 20 liter ice - jar and set aside in a cool place . After a few hours very light , fluffy , voluminous hemispherical masses of fine needles began to separate on ...
Page 17
... liquids , from which the alkaloids had been washed by means of ether , were reserved for the purpose of isolating the coloring - matter . The greater part of the protopine ( alkaloid III ) was recovered from this solution . The liquid ...
... liquids , from which the alkaloids had been washed by means of ether , were reserved for the purpose of isolating the coloring - matter . The greater part of the protopine ( alkaloid III ) was recovered from this solution . The liquid ...
Page 152
... liquid dialyzed for four days , whereupon considerable precipitate , A2 , separated , consisting of amorphous matter and octahedral crystals , some of which were large enough to be easily recognized by the naked eye . Several grams of ...
... liquid dialyzed for four days , whereupon considerable precipitate , A2 , separated , consisting of amorphous matter and octahedral crystals , some of which were large enough to be easily recognized by the naked eye . Several grams of ...
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Common terms and phrases
acid solution action added alcohol addition-product alkaline alkaloid alloys alumina aluminum ammonia ammonium amount amyl alcohol analysis anethol antimony apparatus aqua atomic weight barium hydroxide benzene boiling brucine brucine hydrochloride cadmium calculated carbon dioxide cent Chem chemical chemistry color compound concentrated containing crystals determined dibromide dilute dissolved distilled earths edestin erbium ether ethyl alcohol evaporated excess experiments filtered filtrate flask formed fraction gram gram gave gram silver bromide heat hydrochloric acid hydrogen inhibitive insoluble iodide iodine iron laboratory liquid melting metal method methyl mixture molar molecules neutral nitrate nitric acid nitrogen normal obtained oxalate oxide oxygen phosphate platinum portion potash potassium hydroxide precipitate prepared Pres protein pure quantity reaction reagent residue salt sample Section separated silica silver bromide sodium chloride soil soluble solvent substance sulphate sulphide sulphuric acid TABLE tellurium temperature terbia thiocyanate thorium tion tube washed yttria ΙΟ