Chemical News and Journal of Physical Science, Tom 99Chemical news office., 1909 |
Z wnętrza książki
Wyniki 1 - 5 z 100
Strona 1
... carbon with chlorine at a red heat ( Ste . - Claire Deville ) . 5. Heating minerals mixed with carbon in an electric furnace ( Moissan ) . 6. Fusion with potassium bisulphate ( Berzelius , Rose ) . Lawrence Smith and Rose also use ...
... carbon with chlorine at a red heat ( Ste . - Claire Deville ) . 5. Heating minerals mixed with carbon in an electric furnace ( Moissan ) . 6. Fusion with potassium bisulphate ( Berzelius , Rose ) . Lawrence Smith and Rose also use ...
Strona 2
... Carbon in an Electric Furnace . - Moissan reduces the minerals to fine powder , mixes them with charcoal from sugar inti- mately with the aid of a little sugar syrup , calcines the mixture in a Perrot - furnace , and then agglomerates ...
... Carbon in an Electric Furnace . - Moissan reduces the minerals to fine powder , mixes them with charcoal from sugar inti- mately with the aid of a little sugar syrup , calcines the mixture in a Perrot - furnace , and then agglomerates ...
Strona 5
... carbon that may be left on the tube by decomposition , all the tiles are placed in position , and the three burners ad- justed so that the tube is heated as uniformly as possible to dull redness . The carbon at this temperature is not ...
... carbon that may be left on the tube by decomposition , all the tiles are placed in position , and the three burners ad- justed so that the tube is heated as uniformly as possible to dull redness . The carbon at this temperature is not ...
Strona 6
... carbon . Percentage hydrogen . 40.61 40'44 40'48 40.56 5:28 5'20 5:18 5'20 ( The theoretical percentages for C4H6O4 are carbon = 40.68 , hydrogen 5'09 ) . If the substance contains nitrogen , a metallic copper spiral 7 cm . long is , as ...
... carbon . Percentage hydrogen . 40.61 40'44 40'48 40.56 5:28 5'20 5:18 5'20 ( The theoretical percentages for C4H6O4 are carbon = 40.68 , hydrogen 5'09 ) . If the substance contains nitrogen , a metallic copper spiral 7 cm . long is , as ...
Strona 10
... carbon dioxide per volume of water . This corresponds to a concentration of the carbonic acid equal to o'oooor mol . per litre , or o'00002 normal . From the dissociation con- stant 3040 × 10-10 determined by Walker ( Zeit . Phys . Chem ...
... carbon dioxide per volume of water . This corresponds to a concentration of the carbonic acid equal to o'oooor mol . per litre , or o'00002 normal . From the dissociation con- stant 3040 × 10-10 determined by Walker ( Zeit . Phys . Chem ...
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
acetic action Advertisements alcohol alkali ammonia ammonium amount analysis antimony apparatus aqueous atomic weight B.Sc barium boiling calcium carbon carbonic acid cent Chem CHEMICAL NEWS OFFICE Chemistry chemists chloride colour columbite compounds concentration condensation containing copper crucible crystallised D.Sc determined dilute dioxide dissolved distilled Edited electrolytic elements ether ethyl experiments extract FARRINGDON ST flask flour formed formula gases glass grms guncotton heated hydrochloric acid hydrogen hydroxide Institution iodine iron Laboratory Lecture liquid London manufacture metal method mgrm mineral mixture molecular molecules NEWCASTLE ST nitrate nitric nitric acid nitrogen nitroglycerin obtained osmotic pressure oxalic oxide oxygen paper phenol physical platinum post free potassium precipitate prepared present Price Prof pure quantity Radio-activity radium reaction residue Royal salt scandium Sir William Crookes sodium soluble solution solvent Street substance sulphate sulphuric acid tantalite tantalum tellurium temperature thorium tion tube vapour vols volume
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...