Aluminium: Its History, Occurrence, Properties, Metallurgy and Applications, Including Its Alloys |
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Page 92
... bottom of the crucible a piece of potassium free from carbon and oil , and cover this with an equal volume of pieces of A12C1 . Cover , and heat . over a spirit lamp , at first gently , that the crucible be not broken by the production ...
... bottom of the crucible a piece of potassium free from carbon and oil , and cover this with an equal volume of pieces of A12C1 . Cover , and heat . over a spirit lamp , at first gently , that the crucible be not broken by the production ...
Page 101
... bottom , so that the end of the tube just reaches the inside . surface of the crucible . The carbonic oxide ( CO ) disengaged burns in the bottom of the crucible , heating and drying it ; afterwards the sodium flame appears , and then ...
... bottom , so that the end of the tube just reaches the inside . surface of the crucible . The carbonic oxide ( CO ) disengaged burns in the bottom of the crucible , heating and drying it ; afterwards the sodium flame appears , and then ...
Page 110
... bottom of the crucible , the pow- dered cryolite about it , and the KCl above all . On proceeding in this manner , it was observed that much sodium was volatilized , burning with a strong , yellow flame , which never occurred when it ...
... bottom of the crucible , the pow- dered cryolite about it , and the KCl above all . On proceeding in this manner , it was observed that much sodium was volatilized , burning with a strong , yellow flame , which never occurred when it ...
Page 114
... lustre . Some small pieces , not globular , however , were found in the bottom of the crucible , and occasion- ally adhering to it , which cracked on being ham- mered , and were different in color and lustre from 114 ALUMINIUM .
... lustre . Some small pieces , not globular , however , were found in the bottom of the crucible , and occasion- ally adhering to it , which cracked on being ham- mered , and were different in color and lustre from 114 ALUMINIUM .
Page 117
... bottom . To effect this , long continued heat would be required , which cannot be given in glass tubes owing to the powerful action of the melted fluoride on them . To obviate this difficulty a platinum crucible was lined with magnesia ...
... bottom . To effect this , long continued heat would be required , which cannot be given in glass tubes owing to the powerful action of the melted fluoride on them . To obviate this difficulty a platinum crucible was lined with magnesia ...
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Common terms and phrases
acid alkali alloy of aluminium alum alumina aluminium bronze aluminium chloride beauxite brittle calcining carbonic oxide cast cent charcoal charge Chem chemical clay color condenser containing cooling copper corundum Cowles Bros crucible cryolite cupelled decomposed deposit Deville Deville's dissolved double chloride earthen crucible easily electricity electrodes electrolysis experiments fluoride fluorspar flux formed Fremy furnace fused fusible fusion give globules grammes grms heated to redness hydrochloric acid hydrogen ingot iron kilos layer malleable manufacture mass melted method Mierzinski minium mixed mixture NaCl nitric acid obtained operation oxide patent placed porcelain potassium pounds powder precipitated producing aluminium properties pulverized pure aluminium quantity reaction red heat reduced residue retort reverberatory furnace Salindres salt silicon silver slag soda sodium sodium fluoride solder solution Stohman sulphate sulphide sulphur temperature tion Tissier tube vapor vessel volatile washing Wöhler zinc
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