Chemical News and Journal of Industrial Science, Tomy 31-32Chemical news office., 1875 |
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Strona 165
... SILVER FROM CUPREOUS IRON PYRITES . * By THOMAS GIBB , F.C.S. , Associate of the Royal School of Mines . " CUPREOUS PYRITES , " now largely imported from Spain and Portugal to supply sulphur for the manufacture of sulphuric acid ...
... SILVER FROM CUPREOUS IRON PYRITES . * By THOMAS GIBB , F.C.S. , Associate of the Royal School of Mines . " CUPREOUS PYRITES , " now largely imported from Spain and Portugal to supply sulphur for the manufacture of sulphuric acid ...
Strona 177
... silver appears to be found as chloride after roasting . Originally the products of cal- cination were converted into sulphate by means of sul- phuric acid . The silver remained in the residue , which then contained 600 ozs . per ton ...
... silver appears to be found as chloride after roasting . Originally the products of cal- cination were converted into sulphate by means of sul- phuric acid . The silver remained in the residue , which then contained 600 ozs . per ton ...
Strona 83
... SILVER . To the Editor of the Chemical News . SIR , -I ought to be , and am , the last to cavil at any expressions of the able , candid , and , at the same time , generous review of my lately - published book , “ Pyrology , or Fire ...
... SILVER . To the Editor of the Chemical News . SIR , -I ought to be , and am , the last to cavil at any expressions of the able , candid , and , at the same time , generous review of my lately - published book , “ Pyrology , or Fire ...
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