Chemical News and Journal of Industrial Science, Tomy 121-122Chemical news office., 1920 |
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Strona 2
... filtration was slow . Coarse charcoals do best at high temperatures , when penetration effect is considerable ... filtered off and heated in an iron retort . The iodine sub- limed into the neck of the retort and removed . The char ...
... filtration was slow . Coarse charcoals do best at high temperatures , when penetration effect is considerable ... filtered off and heated in an iron retort . The iodine sub- limed into the neck of the retort and removed . The char ...
Strona 4
... filtered . The clear solution , coloured pale blue by copper , was allowed to crystallise by evaporation . Silver nitrate thus obtained was fused in a porcelain dish until the melted mass became black . This black sub- stance was ...
... filtered . The clear solution , coloured pale blue by copper , was allowed to crystallise by evaporation . Silver nitrate thus obtained was fused in a porcelain dish until the melted mass became black . This black sub- stance was ...
Strona 5
... filtered , evaporated in a quartz dish to small volume and filtered again . This solution was mixed with the purest mother liquor from which the previously used crystals of lead chloride had been deposited , and evaporation was ...
... filtered , evaporated in a quartz dish to small volume and filtered again . This solution was mixed with the purest mother liquor from which the previously used crystals of lead chloride had been deposited , and evaporation was ...
Strona 16
... filtered , is established between the plates , and the water is forced to- wards the cathode . In this press , very fine materials can be de - watered , materials fine enough to choke the ordinary press . This press can be used for ...
... filtered , is established between the plates , and the water is forced to- wards the cathode . In this press , very fine materials can be de - watered , materials fine enough to choke the ordinary press . This press can be used for ...
Strona 25
... filtered , and concentration of filtrate determined by methods varying with solution used . The solution became weaker in solute , rapidly at first and then more slowly . The action is a kind of mono - molecular action , so an attempt ...
... filtered , and concentration of filtrate determined by methods varying with solution used . The solution became weaker in solute , rapidly at first and then more slowly . The action is a kind of mono - molecular action , so an attempt ...
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