Chemical News and Journal of Industrial Science, Tomy 31-32Chemical news office., 1875 |
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Strona 138
... sulphide , the following process was found to be the best : -The mass resulting from the heating of strontium hyposulphite is converted into powder and dissolved in water ; the strontium sulphide ( SrS ) remains in solution , and a pre ...
... sulphide , the following process was found to be the best : -The mass resulting from the heating of strontium hyposulphite is converted into powder and dissolved in water ; the strontium sulphide ( SrS ) remains in solution , and a pre ...
Strona 200
... sulphide to the state of sulphate takes place in three distinct stages ; first , from sulphide to hyposulphite , then to sulphite , and lastly to sulphate . The reactions being- ( 1 ) 2Na2S + NaNO3 + 3H2O = Na2S2O3 + 3NaHO + NH3 . ( 2 ) ...
... sulphide to the state of sulphate takes place in three distinct stages ; first , from sulphide to hyposulphite , then to sulphite , and lastly to sulphate . The reactions being- ( 1 ) 2Na2S + NaNO3 + 3H2O = Na2S2O3 + 3NaHO + NH3 . ( 2 ) ...
Strona 211
... sulphide of sodium is nearly oxidised to sulphate ; a trace of sulphide is always left in at this stage , for if completely oxidised here , the action of the air would be sufficient to give a shade of green to the finished caustic ...
... sulphide of sodium is nearly oxidised to sulphate ; a trace of sulphide is always left in at this stage , for if completely oxidised here , the action of the air would be sufficient to give a shade of green to the finished caustic ...
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