Chemical News and Journal of Physical Science, Tom 99Chemical news office., 1909 |
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Strona 1
... Grms . TANTALUM , NIOBIUM , AND TITANIUM : OBSERVATIONS ON . * THESE BODies . By W. B. GILES , F.1.C. FROM the time of the discovery of niobium by Hatchett in 1801 and of tantalum by Ekeberg in 1802 , several methods have been proposed ...
... Grms . TANTALUM , NIOBIUM , AND TITANIUM : OBSERVATIONS ON . * THESE BODies . By W. B. GILES , F.1.C. FROM the time of the discovery of niobium by Hatchett in 1801 and of tantalum by Ekeberg in 1802 , several methods have been proposed ...
Strona 2
... grms . Tantalum , Niobium , and Titanium . Combustion Analysis . Matter left after treating Time taken . KOH used . with acid . Colour of acids on ignition . First fusion . Hours . 3 Grms . Grms . ΙΟ 2.766 Acids remained white . Second ...
... grms . Tantalum , Niobium , and Titanium . Combustion Analysis . Matter left after treating Time taken . KOH used . with acid . Colour of acids on ignition . First fusion . Hours . 3 Grms . Grms . ΙΟ 2.766 Acids remained white . Second ...
Strona 5
... grms . Two of the burners are supplied with attach- ments for spreading the flame into a flat sheet ; the third is used for local heating , but towards the end of the com- bustion , when the whole tube is heated , it also may be ...
... grms . Two of the burners are supplied with attach- ments for spreading the flame into a flat sheet ; the third is used for local heating , but towards the end of the com- bustion , when the whole tube is heated , it also may be ...
Strona 6
... grms . of the compound taken , add 156 cubic centimetres of alcohol ( at least 98 per cent ) if the compound ... grms . of sodium if the compound contains chlorine , or 8.5 grms . of sodium if the compound contains bromine , or 5'5 grms ...
... grms . of the compound taken , add 156 cubic centimetres of alcohol ( at least 98 per cent ) if the compound ... grms . of sodium if the compound contains chlorine , or 8.5 grms . of sodium if the compound contains bromine , or 5'5 grms ...
Strona 7
... grms . of dry soil are placed in an Erlenmeyer flask with 25 cc . to 35 cc . of about 20 per cent hydrochloric acid . The flask is thoroughly shaken and a small funnel is hung in its neck to avoid too great a loss of acid by evaporation ...
... grms . of dry soil are placed in an Erlenmeyer flask with 25 cc . to 35 cc . of about 20 per cent hydrochloric acid . The flask is thoroughly shaken and a small funnel is hung in its neck to avoid too great a loss of acid by evaporation ...
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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...