Chemical News and Journal of Industrial Science, Tomy 105-106Chemical news office., 1912 |
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Strona 51
... tube furnace for fifteen minutes . This furnace consisted of a heater tube of Acheson graphite surrounded by an insulated carbon tube with an annular free space between them . The outer carbon tube is well packed in granular petroleum ...
... tube furnace for fifteen minutes . This furnace consisted of a heater tube of Acheson graphite surrounded by an insulated carbon tube with an annular free space between them . The outer carbon tube is well packed in granular petroleum ...
Strona 52
... tube furnace reached a specific gravity of 2.090 . Some of the lamp- black , unfired , was ground with 5 per cent ferric oxide and fired . This had a specific gravity of 2 : 094 . Another sample of lampblack was impregnated with ferric ...
... tube furnace reached a specific gravity of 2.090 . Some of the lamp- black , unfired , was ground with 5 per cent ferric oxide and fired . This had a specific gravity of 2 : 094 . Another sample of lampblack was impregnated with ferric ...
Strona 65
... tube has been cooled suddenly from high temperatures , it is entirely on the walls . Above 650 ° the radium C is dis- tributed homogeneously throughout the volume of the tube . Each of these partitions gives a different B - ray ...
... tube has been cooled suddenly from high temperatures , it is entirely on the walls . Above 650 ° the radium C is dis- tributed homogeneously throughout the volume of the tube . Each of these partitions gives a different B - ray ...
Strona 75
... tube furnace with a porcelain tube inside . This makes an excellent tube - furnace , but calls for special transformers . 3. The platinum foil or wire - bound body of a fire - clay or other refractory . This has been to the average man ...
... tube furnace with a porcelain tube inside . This makes an excellent tube - furnace , but calls for special transformers . 3. The platinum foil or wire - bound body of a fire - clay or other refractory . This has been to the average man ...
Strona 76
... Tube Furnace . This consists of a porcelain or alundum tube , wound with tungsten or molybdenum foil . Around the tube is a tight metal casing filled with powdered silica , and , to pre- vent oxidation of the winding , a hydrogen ...
... Tube Furnace . This consists of a porcelain or alundum tube , wound with tungsten or molybdenum foil . Around the tube is a tight metal casing filled with powdered silica , and , to pre- vent oxidation of the winding , a hydrogen ...
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