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 5
... dissolved in dilute sulphuric acid and treated with an excess of strong hydrochloric acid . The salt began to separate in a very short time in the form of a coarsely crystalline powder . After collecting on a filter it was dissolved in ...
... dissolved in dilute sulphuric acid and treated with an excess of strong hydrochloric acid . The salt began to separate in a very short time in the form of a coarsely crystalline powder . After collecting on a filter it was dissolved in ...
Page 10
... dissolved in hot methyl alcohol and set aside in flat crystallization dishes . Two distinct forms separated , one in light red needles and the other in almost black prisms . These were separated mechanically and each recrystallized ...
... dissolved in hot methyl alcohol and set aside in flat crystallization dishes . Two distinct forms separated , one in light red needles and the other in almost black prisms . These were separated mechanically and each recrystallized ...
Page 13
... dissolved in absolute alcohol rotates polar- ized light [ a ] — 315 ° 12 ′ . D - ALKALOID III . This alkaloid is probably third in abundance in the plant but only a small portion was obtained from the original total product for the ...
... dissolved in absolute alcohol rotates polar- ized light [ a ] — 315 ° 12 ′ . D - ALKALOID III . This alkaloid is probably third in abundance in the plant but only a small portion was obtained from the original total product for the ...
Page 24
... dissolved out , while succinamide remains for the most part insoluble . Ethylene cyanide , cyanpropionamide , and succinimide can then be separated by selection of suitable sol- vents , etc. The residue insoluble in absolute alcohol may ...
... dissolved out , while succinamide remains for the most part insoluble . Ethylene cyanide , cyanpropionamide , and succinimide can then be separated by selection of suitable sol- vents , etc. The residue insoluble in absolute alcohol may ...
Page 32
... dissolve the entire quantity of sub- stance which was precipitated by neutralization , had this been unchanged edestin , nevertheless very little protein matter was dissolved by it . The precipitate was filtered out , washed with water ...
... dissolve the entire quantity of sub- stance which was precipitated by neutralization , had this been unchanged edestin , nevertheless very little protein matter was dissolved by it . The precipitate was filtered out , washed with water ...
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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