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 143
... boiled until the excess of peroxide was destroyed and chlorine expelled , fil- tered through pure paper , made neutral with ammonia , and an excess of 4 cc . of concentrated hydrochloric acid added . From the boiling solution ...
... boiled until the excess of peroxide was destroyed and chlorine expelled , fil- tered through pure paper , made neutral with ammonia , and an excess of 4 cc . of concentrated hydrochloric acid added . From the boiling solution ...
Page 150
... boiled with 30 per cent . NaOH , Zn , and Pb ( C2H3O2 ) 2 . 71⁄2 hours . Five grams with 30 per cent . NaOH and Pb ... boiling at the atmos- pheric pressure , we may safely assume that glycinin yields very nearly 0.320 per cent . of ...
... boiled with 30 per cent . NaOH , Zn , and Pb ( C2H3O2 ) 2 . 71⁄2 hours . Five grams with 30 per cent . NaOH and Pb ... boiling at the atmos- pheric pressure , we may safely assume that glycinin yields very nearly 0.320 per cent . of ...
Page 166
... boiling cystin with 30 per cent . sodium hydroxide , zinc , and bismuth oxide for ten hours , obtained as sulphide 53 per cent .; by boiling for twenty - five hours , 53.7 per cent .; by heating in an atmosphere of hydrogen for ten ...
... boiling cystin with 30 per cent . sodium hydroxide , zinc , and bismuth oxide for ten hours , obtained as sulphide 53 per cent .; by boiling for twenty - five hours , 53.7 per cent .; by heating in an atmosphere of hydrogen for ten ...
Page 175
... boiling , and the solution boiled until the evolution of hydrogen is over . 6. The contents of the flask should be diluted to about 250 cc . 7. Distillation should be carried on not too rapidly for at least forty - five minutes and ...
... boiling , and the solution boiled until the evolution of hydrogen is over . 6. The contents of the flask should be diluted to about 250 cc . 7. Distillation should be carried on not too rapidly for at least forty - five minutes and ...
Page 223
... boiling quietly ; distils well . Sulphates separate in liquid in retort ; salts collect on surface . P.M. I 171 128 81 1:30 176 128 81.5 Distils well . 2 3 180 130 81.5 3 178 132 81.5 Liquid quiet . 3:40 180 136 80 No more gas escaping ...
... boiling quietly ; distils well . Sulphates separate in liquid in retort ; salts collect on surface . P.M. I 171 128 81 1:30 176 128 81.5 Distils well . 2 3 180 130 81.5 3 178 132 81.5 Liquid quiet . 3:40 180 136 80 No more gas escaping ...
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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