Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
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Strona 4
... lead sulphuretted hydrogen into the warmed ammoniacal solution until it was saturated ; the ferrous sulphide thus formed can be filtered much better than when it is precipitated directly with ammonium sulphide . In presence of a little ...
... lead sulphuretted hydrogen into the warmed ammoniacal solution until it was saturated ; the ferrous sulphide thus formed can be filtered much better than when it is precipitated directly with ammonium sulphide . In presence of a little ...
Strona 5
... lead . It is thus evident that the removal of tin presents no difficulties . the supply water through tube a ( see Fig . ) , which passes through tube b . The overflow passes through b and rises through tube c to the small basin d ...
... lead . It is thus evident that the removal of tin presents no difficulties . the supply water through tube a ( see Fig . ) , which passes through tube b . The overflow passes through b and rises through tube c to the small basin d ...
Strona 8
... lead , copper , and aluminium , Kern used aluminium as a reducing agent for uranium ( Journ . Am . Chem . Soc . , 1901 , xxiii . , 685 ) , and Fritchle used it for both uranium and vanadium . Silver , lead , and copper offered no ...
... lead , copper , and aluminium , Kern used aluminium as a reducing agent for uranium ( Journ . Am . Chem . Soc . , 1901 , xxiii . , 685 ) , and Fritchle used it for both uranium and vanadium . Silver , lead , and copper offered no ...
Strona 17
... lead and line , has long been practised . This operation , however , is a difficult one to carry out , except in quite shallow water and when the vessel is nearly at rest . It is obvious that greater safety in navigation was attained ...
... lead and line , has long been practised . This operation , however , is a difficult one to carry out , except in quite shallow water and when the vessel is nearly at rest . It is obvious that greater safety in navigation was attained ...
Strona 18
... lead chloride can be heated at 150 ° with perfect safety ) . Weigh as PbCl2 , add o'0085 grm . to the weight of the precipitate , and multiply by o'74473 ; the product gives the weight of lead . ANALYSIS OF COMMERCIAL CYANIDE . In a ...
... lead chloride can be heated at 150 ° with perfect safety ) . Weigh as PbCl2 , add o'0085 grm . to the weight of the precipitate , and multiply by o'74473 ; the product gives the weight of lead . ANALYSIS OF COMMERCIAL CYANIDE . In a ...
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