Chemical News and Journal of Industrial Science, Tomy 119-120Chemical news office., 1919 |
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Strona 12
... heating with a large excess of ammonia that the fourth molecule of NH3 can be fixed , giving [ Pt.4NH3 ] ( NO2 ) 2 ... Heat Treatment , Mechanical Testing , and Metallography . - Address , A. M. C. , CHEMICAL NEWS Office , 16 , New ...
... heating with a large excess of ammonia that the fourth molecule of NH3 can be fixed , giving [ Pt.4NH3 ] ( NO2 ) 2 ... Heat Treatment , Mechanical Testing , and Metallography . - Address , A. M. C. , CHEMICAL NEWS Office , 16 , New ...
Strona 24
... Heat gently until no more bubbles pass through the Ba ( OH ) 2 ; then remove stopper from the test - tube . A cloudiness or white pre- cipitate shows the presence of a carbonate . By this procedure I mgrm . of carbonate can be detected ...
... Heat gently until no more bubbles pass through the Ba ( OH ) 2 ; then remove stopper from the test - tube . A cloudiness or white pre- cipitate shows the presence of a carbonate . By this procedure I mgrm . of carbonate can be detected ...
Strona 47
... heat and the pressure adjusted to about 2 mm . , the vacuum tube being sealed off at this pressure and kept with full particulars of its source for further reference . The amount of gas that could be driven out of the aerolites by heat ...
... heat and the pressure adjusted to about 2 mm . , the vacuum tube being sealed off at this pressure and kept with full particulars of its source for further reference . The amount of gas that could be driven out of the aerolites by heat ...
Strona 75
... heat to boiling , remove from heat , make faintly ammoniacal , and add some K4Fe ( CN ) 6 solution . The zinc is precipitated as normal zinc ferrocyanide , Zn2Fe ( CN ) 6 , the lead remains in solution , lead ferro- cyanide being ...
... heat to boiling , remove from heat , make faintly ammoniacal , and add some K4Fe ( CN ) 6 solution . The zinc is precipitated as normal zinc ferrocyanide , Zn2Fe ( CN ) 6 , the lead remains in solution , lead ferro- cyanide being ...
Strona 79
... heating of the solution caused by addition of concentrated acid . Excess of ferrous sulphate , hydrogen peroxide , or ... heat the solution . This is unnecessary when using ferrous sulphate , and in fact the solution should be kept at ...
... heating of the solution caused by addition of concentrated acid . Excess of ferrous sulphate , hydrogen peroxide , or ... heat the solution . This is unnecessary when using ferrous sulphate , and in fact the solution should be kept at ...
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