Chemical News and Journal of Physical Science, Tom 103Chemical news office., 1911 |
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... allowed by ROBERT PRINGLE and SONS , Gold and Silver Refiners , & c . , 40 and 42 , CLERKENWELL ROAD F.C. Photographic Residues Reduced and Purchased . SULPHUROUS ACID and SULPHITES . Liquid SO , in Syphons , for Lectures , & c ...
... allowed by ROBERT PRINGLE and SONS , Gold and Silver Refiners , & c . , 40 and 42 , CLERKENWELL ROAD F.C. Photographic Residues Reduced and Purchased . SULPHUROUS ACID and SULPHITES . Liquid SO , in Syphons , for Lectures , & c ...
Strona 5
... allowed to stand in the dark for thirty minutes . The carbon tetra- chloride solution and the oil to be tested should be pre- viously dried by use of a few sticks of fused calcium chloride . At the end of thirty minutes about 100 cc ...
... allowed to stand in the dark for thirty minutes . The carbon tetra- chloride solution and the oil to be tested should be pre- viously dried by use of a few sticks of fused calcium chloride . At the end of thirty minutes about 100 cc ...
Strona 12
... allowed to proceed too quickly , the tem- perature does not exceed 70 ° , and the reagents are used in the proportion of 160 grms . of pure nitric acid , 100 grms . of crystallised acetic acid , and 290 grms . of acetic anhydride . The ...
... allowed to proceed too quickly , the tem- perature does not exceed 70 ° , and the reagents are used in the proportion of 160 grms . of pure nitric acid , 100 grms . of crystallised acetic acid , and 290 grms . of acetic anhydride . The ...
Strona 14
... allowed by ROBERT PRINGLE and SONS , Gold and Silver Refiners , & c . , 40 and 42 , CLERKENWELL ROAD E.C. Photographic Residues Reduced and Purchased . SULPHUROUS ACID and SULPHITES . Liquid SO2 in Syphons , for Lectures , & o ...
... allowed by ROBERT PRINGLE and SONS , Gold and Silver Refiners , & c . , 40 and 42 , CLERKENWELL ROAD E.C. Photographic Residues Reduced and Purchased . SULPHUROUS ACID and SULPHITES . Liquid SO2 in Syphons , for Lectures , & o ...
Strona 21
... allowed to circulate through the instrument without lighting the gas the temperature of the outlet water will be ... allowed to compensate for abnormally weak ones , and a failure of one in six is allowed . Mantles which pass the above ...
... allowed to circulate through the instrument without lighting the gas the temperature of the outlet water will be ... allowed to compensate for abnormally weak ones , and a failure of one in six is allowed . Mantles which pass the above ...
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absorption acetic acid action alcohol alkali alloy amalgam ammonia ammonium amount Analysis apparatus atomic weight B.Sc boiling bromine calcium carbon cent Chem CHEMICAL NEWS Office chemists chloride CLERKENWELL ROAD cobalt colour compounds concentrated condenser containing copper crucible crystalline crystals D.Sc determined dilute dioxide dissolved Edition electric electrolyte ether ethyl evaporated experiments Farringdon Street formed fractions G. S. Newth gases grms heat hydrate hydrazine hydrochloric acid hydrogen Inorganic Laboratory liquid London Manufacture melting mercury metal method mgrms mixture molecular molecules neodymium Newcastle Street nitrate nitric acid nitrogen obtained Organic Chemistry oxide oxidising oxygen paper Physical platinum post free potassium Practical praseodymium precipitate prepared present pressure Prof pure quantity radium reaction reagent residue Royal salt silver Sir William Crookes Society sodium soluble solution solvent substance sulphate sulphuric acid temperature Text-book tion tube vapour volume W. H. Perkin zinc ΙΟ