Chemical News and Journal of Industrial Science, Tomy 131-132Chemical news office., 1925 |
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Strona 2
... reaction is complete no more ethyl iodide will condense in the reflux con- denser . as Should the reaction fail to start , occasionally happens , it may be necessary to distil all of the ethyl iodide over into B and reheat the zine for ...
... reaction is complete no more ethyl iodide will condense in the reflux con- denser . as Should the reaction fail to start , occasionally happens , it may be necessary to distil all of the ethyl iodide over into B and reheat the zine for ...
Strona 49
... reaction was given . Whilst well cooled , 10 ccm . of absolute alcohol containing 2.5 grs . of amyl nitrite were added . The temperature of the mix- ture was kept below 15 ° C. A deep green colouration of the mixture appeared , which ...
... reaction was given . Whilst well cooled , 10 ccm . of absolute alcohol containing 2.5 grs . of amyl nitrite were added . The temperature of the mix- ture was kept below 15 ° C. A deep green colouration of the mixture appeared , which ...
Strona 65
... reactions which are made use of for the purpose of separating zinc from other elements are those with H , S and ( NH ) , S ; with KOH and NaOH ; with K , CO , and Na , CO ,; and with ( NH ) , CO ,. A characteristic qualita- tive reaction ...
... reactions which are made use of for the purpose of separating zinc from other elements are those with H , S and ( NH ) , S ; with KOH and NaOH ; with K , CO , and Na , CO ,; and with ( NH ) , CO ,. A characteristic qualita- tive reaction ...
Strona 66
... reaction was due to the rate of running in the H , S and the temperature of the solution . A fast rate of bubbling in the HS and room temperatures were the optimum conditions . P. Pipereaut and A. Vila ( 22 ) in 1907 add pure sulfur to ...
... reaction was due to the rate of running in the H , S and the temperature of the solution . A fast rate of bubbling in the HS and room temperatures were the optimum conditions . P. Pipereaut and A. Vila ( 22 ) in 1907 add pure sulfur to ...
Strona 68
... reaction taking place first : ( 1 ) 2 ZnCl2 + K , Fe ( CN ) , = 4 KCI + Zn , Fe ( CN )。. The zinc ferrocyanide , so formed , does not flocculate readily but as more ferrocyanide is added to the hot solution , a potassium zinc ferro ...
... reaction taking place first : ( 1 ) 2 ZnCl2 + K , Fe ( CN ) , = 4 KCI + Zn , Fe ( CN )。. The zinc ferrocyanide , so formed , does not flocculate readily but as more ferrocyanide is added to the hot solution , a potassium zinc ferro ...
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