Chemical News and Journal of Industrial Science, Tomy 107-108Chemical news office., 1913 |
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Strona 3
... gold . Enamelling is still held as a secret art , and the formulas are carefully guarded . Most companies allow very few visitors to go through their plants and some keep their employees in ignorance by various schemes . In one American ...
... gold . Enamelling is still held as a secret art , and the formulas are carefully guarded . Most companies allow very few visitors to go through their plants and some keep their employees in ignorance by various schemes . In one American ...
Strona 10
... Gold Ores at the Witwatersrand ( Transvaal ) Gold Fields , " 1894 , vol . xiii . , p . 326 ; " The Life Work of Alfred Nobel , " 1899 , vol . xviii . , p . 443 ; " Observations on Cotton and Nitrated Cotton , " 1904 , vol . xxiii . , p ...
... Gold Ores at the Witwatersrand ( Transvaal ) Gold Fields , " 1894 , vol . xiii . , p . 326 ; " The Life Work of Alfred Nobel , " 1899 , vol . xviii . , p . 443 ; " Observations on Cotton and Nitrated Cotton , " 1904 , vol . xxiii . , p ...
Strona 15
... gold , which acted as positive poles , had the power of producing the passive state as described in the previous paragraph . When , however , poles of passive iron obtained by dilute nitric acid , and aluminium or zinc were used , it ...
... gold , which acted as positive poles , had the power of producing the passive state as described in the previous paragraph . When , however , poles of passive iron obtained by dilute nitric acid , and aluminium or zinc were used , it ...
Strona 23
... Gold . Crystallised Gold . -M . Hanriot and F. Raoult . - Brown gold is rapidly attacked by nitric acid , and the solution contains the nitrate ( NO3 ) 3Au.Aq . The action of hydrochloric acid on brown gold leads to the formation of ...
... Gold . Crystallised Gold . -M . Hanriot and F. Raoult . - Brown gold is rapidly attacked by nitric acid , and the solution contains the nitrate ( NO3 ) 3Au.Aq . The action of hydrochloric acid on brown gold leads to the formation of ...
Strona 64
... gold and silver in the massive state , and with natural barite ; on the other hand , with powders produced by precipitating these substances by chemical agency ; and he found that in each case the density of the powder From the Journal ...
... gold and silver in the massive state , and with natural barite ; on the other hand , with powders produced by precipitating these substances by chemical agency ; and he found that in each case the density of the powder From the Journal ...
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