Chemical News and Journal of Physical Science, Tom 121Chemical news office., 1921 |
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Strona 9
... metals , and ( 4 ) International Atomic Weights ( 1917 ) . The book appears to be remarkably free from errors , and ... metal by hydrochloric acid , has given commercial results . Having come to the conclusion that the adherence of the ...
... metals , and ( 4 ) International Atomic Weights ( 1917 ) . The book appears to be remarkably free from errors , and ... metal by hydrochloric acid , has given commercial results . Having come to the conclusion that the adherence of the ...
Strona 10
... metal , the authors tried the very simple mechanical means and very effective method of producing this im- perfection , that of spraying the surface with sand . The first results were very favourable , and the authors found that the ...
... metal , the authors tried the very simple mechanical means and very effective method of producing this im- perfection , that of spraying the surface with sand . The first results were very favourable , and the authors found that the ...
Strona 16
... metal cylinder , revolving at a speed of about one revo- lution in three minutes , at a distance of about three - quarters of an inch from the cathode . A scraper removes the clay from the anode , whence it falls down a shute clear of ...
... metal cylinder , revolving at a speed of about one revo- lution in three minutes , at a distance of about three - quarters of an inch from the cathode . A scraper removes the clay from the anode , whence it falls down a shute clear of ...
Strona 17
slimes produced in various stages of metal purifi- cation . The removal of ash from gelatin and the separation of glue and gelatin into several pro- ducts has been accomplished . ( The paper was illustrated by a large number of lantern ...
slimes produced in various stages of metal purifi- cation . The removal of ash from gelatin and the separation of glue and gelatin into several pro- ducts has been accomplished . ( The paper was illustrated by a large number of lantern ...
Strona 19
... metal by rubbing them on rocks which possessed abrasive qualities . It is not a matter of record when the idea of cutting out a circular block of stone , mounting it on a spindle , and re- volving it by hand was first thought of ...
... metal by rubbing them on rocks which possessed abrasive qualities . It is not a matter of record when the idea of cutting out a circular block of stone , mounting it on a spindle , and re- volving it by hand was first thought of ...
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