Chemical News and Journal of Physical Science, Tom 99Chemical news office., 1909 |
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Strona 1
... mineral . The disadvant- ages of this mode of procedure are obvious , a very large amount of alkali is employed , and much time and mani- defects arise from the fact that it is impossible to raise the pulation is necessary . I shall ...
... mineral . The disadvant- ages of this mode of procedure are obvious , a very large amount of alkali is employed , and much time and mani- defects arise from the fact that it is impossible to raise the pulation is necessary . I shall ...
Strona 2
... mineral is a very tedious and lengthy operation . Some of the complex titano - niobates are but little attacked by hydrofluoric acid . Fusion with bifluoride of potassium has some advantages ; its action is more powerful than that of ...
... mineral is a very tedious and lengthy operation . Some of the complex titano - niobates are but little attacked by hydrofluoric acid . Fusion with bifluoride of potassium has some advantages ; its action is more powerful than that of ...
Strona 3
... mineral is carried on to an extent inconvenient in ordinary laboratories a complete resolution of the mineral is rarely , if ever , attained at one operation . However long the fusion is continued , the acids obtained by extracting the ...
... mineral is carried on to an extent inconvenient in ordinary laboratories a complete resolution of the mineral is rarely , if ever , attained at one operation . However long the fusion is continued , the acids obtained by extracting the ...
Strona 25
... mineral ) when the difficulties disappear but that also one might expect to potassium tantalate and niobate pass rapidly into solution reduce all the tin , lead , antimony , & c . , to the metallic as they are very soluble , while the ...
... mineral ) when the difficulties disappear but that also one might expect to potassium tantalate and niobate pass rapidly into solution reduce all the tin , lead , antimony , & c . , to the metallic as they are very soluble , while the ...
Strona 26
... mineral it is not indicated . In order to ascertain what amount of carbonate of potassium is necessary I have made a good many trials with different proportions with columbites and tantalites ; four parts of carbonate to one of mineral ...
... mineral it is not indicated . In order to ascertain what amount of carbonate of potassium is necessary I have made a good many trials with different proportions with columbites and tantalites ; four parts of carbonate to one of mineral ...
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Popularne fragmenty
Strona 138 - That no article shall be deemed misbranded, or adulterated within the provisions of this act when intended for export to any foreign country and prepared or packed according to the specifications or directions of the foreign purchaser when no substance is used in the preparation or packing thereof in conflict with the laws of the foreign country to which said article is intended to be shipped...
Strona 134 - Illustrations. 255. net. OILS, FATS, BUTTERS, AND WAXES : THEIR PREPARATION AND PROPERTIES, AND MANUFACTURE THEREFROM OF CANDLES, SOAPS, AND OTHER PRODUCTS. BY CR ALDER WRIGHT, D.Sc., FRS, Late Lecturer on Chemistry, St. Marv's Hospital Medical School ; Examiner in "Soap" to the City and Guilds of London Institute.
Strona 228 - Works by GS NEWTH, FIC, FCS, Demonstrator in the Royal College of Science, London. CHEMICAL LECTURE EXPERIMENTS. With 230 Illustrations. Crown 8vo. , 6s. CHEMICAL ANALYSIS, QUANTITATIVE AND QUALITATIVE. With 100 Illustrations. Crown 8vo., 6s. 6d.
Strona 134 - Illustrations. l6s. net. THE CHEMISTRY OF INDIA RUBBER. A" Treatise on the Nature of India Rubber, its Chemical and Physical Examination, and the Determination and Valuation of India Rubber Substitutes. Including the Outlines of a Theory on Vulcanisation. BY CARL OTTO WEBER, PH.D. " Replete with scientific and also with technical interest. . . . The section on physical properties is a complete resume of every thing known on the subject.
Strona 228 - OUTLINES OF THEORETICAL CHEMISTRY. By LOTHAR MEYER, Professor of Chemistry in the University of Tubingen. Translated by Professors P. PHILLIPS BEDSON, D.Sc., and W. CARLETON...
Strona 138 - November 18, 1908, and continuing five days. At this hearing those who favored the bleaching process and those who opposed it were given equal opportunities to be heard.
Strona 60 - For full information, inquiries should be addressed to the Registrar. Fellows and Associates are invited to communicate with the Registrar in any instance in which they are able to assist in securing appointments for qualified chemists.
Strona 134 - Journal. LONDON : CHARLES GRIFFIN & CO., LIMITED. EXETER STREET. STRAND THIRD EDITION. In Handsome Cloth. Fully Illustrated. 21s. net. PRINCIPLES AND PRACTICE OF BREWING. FOR THE USE OF STUDENTS AND PRACTICAL MEN. BY WALTER J. SYKES. REVISED BY ARTHUR R. LING, FIC, FCS, Editor of the Journal of the Institute of Brewing.
Strona 33 - ... been added, a pink color is developed. If the solution is allowed to stand perfectly quiet it will be noticed that the pink color is confined to certain spots or nodes on the surface. The pink color of the indicator is a proof of the presence of hydroxyl ions and thus indicates the negative poles. Many persons who are interested in the metallurgical problems connected with the iron and steel industry may not be familiar with the modern theory of indicators, and therefore...