Chemical News and Journal of Industrial Science, Volúmenes27-28Chemical news office., 1773 |
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Página 20
... matter at the cost of purity . This coal is remarkable also on account of the vast number of small fresh water shells which are associated with it , and which must render it rich in phosphorus . Not only is the limestone above , below ...
... matter at the cost of purity . This coal is remarkable also on account of the vast number of small fresh water shells which are associated with it , and which must render it rich in phosphorus . Not only is the limestone above , below ...
Página 30
... matter often differ materially in the amount of chemical work they can perform ; thus an atom of sulphur can represent 6 atoms of hydrogen in combination ; nitro- gen 5 ; carbon 4 ; boron 3 ; and oxygen 2 atoms of hydro- gen ; silver ...
... matter often differ materially in the amount of chemical work they can perform ; thus an atom of sulphur can represent 6 atoms of hydrogen in combination ; nitro- gen 5 ; carbon 4 ; boron 3 ; and oxygen 2 atoms of hydro- gen ; silver ...
Página 31
... matter , consists in the decomposition of the above - mentioned sub - iodide of silver , ordinary iodide of silver dissolving , and the excess of silver re- maining , and forming the image in its final condition . Such is the view which ...
... matter , consists in the decomposition of the above - mentioned sub - iodide of silver , ordinary iodide of silver dissolving , and the excess of silver re- maining , and forming the image in its final condition . Such is the view which ...
Página 35
... matter similar to cashoo . " - Petition recorded October 18 , 1872 . 3306. H. Page , Market Buildings , Mincing Lane , London , " Im- provements in the manufacture of paper - pulp , or half - stuff . " - Petition recorded November 16 ...
... matter similar to cashoo . " - Petition recorded October 18 , 1872 . 3306. H. Page , Market Buildings , Mincing Lane , London , " Im- provements in the manufacture of paper - pulp , or half - stuff . " - Petition recorded November 16 ...
Página 59
... matter is removed , the charcoal is thoroughly washed , first by decantation , and next placed on a filter and washed until the water exhibits no acid reaction ; the material is then carefully dried at from 100 ° to 120 ° . 100 parts of ...
... matter is removed , the charcoal is thoroughly washed , first by decantation , and next placed on a filter and washed until the water exhibits no acid reaction ; the material is then carefully dried at from 100 ° to 120 ° . 100 parts of ...
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Términos y frases comunes
acetic acid action alcohol alkaline alumina ammonia analysis aniline anthracene apparatus appears applied Assays atoms barium baryta body boiling bromine calcium carbonic acid caustic cent chemical chemistry chemists chloric acid chloride coal colour combination composition compounds containing converted copper crystallisation crystals decomposed decomposition deposited dilute dissolved distilled electricity employed ether evaporation experiments filtered flask formation formed formic acid formula furnace fused glass heat hydrate hydrochloric acid hydrogen Improvements insoluble iodide iron Laboratory lime liquid magnesia manganese manufacture matter metallic method methyl mineral mixture nitrate nitric acid nitrogen observed obtained ordinary oxalic oxide oxidising oxygen paper PATENTS phosphate phosphoric acid potash potassa potassium precipitate prepared present produced pure pyrites quantity reaction Royal salt sample silicate silver Society soda sodium soluble solution substance sulphate sulphide sulphuretted hydrogen sulphuric acid temperature tion toluidine treated tube vapour washed yields zinc
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Página 232 - Stevenson, president, in the chair. The minutes of the previous meeting having been read and confirmed, Mr.
Página 5 - Thy Father has written for thee." " Come, wander with me," she said, "Into regions yet untrod; And read what is still unread In the manuscripts of God." And he wandered away and away With Nature, the dear old nurse, Who sang to him night and day The rhymes of the universe. And whenever the way seemed long, Or his heart began to fail, She would sing a more wonderful song, Or tell a more marvellous tale.
Página 170 - By a delicate mathematical analysis, Thomson arrives at the theorem that the ''average pressure at any point of an incompressible, frictionless fluid, originally at rest, but set in motion and kept in motion by solids, moving to and fro, or whirling round in any manner, through a finite space of it," would explain the attractions just described.
Página 144 - London. /Chemical Technology, or Chemistry in its ^-^ Applications to the Arts and Manufactures. By THOMAS RICHARDSON and HENRY WATTS.
Página 96 - Supplement; bringing the Record of Chemical Discovery down to the end of the year 1869 ; including also several Additions to, and Corrections of, former results which have appeared in 1870 and 1871.
Página 253 - ... effect is proportional to the magnetic intensity of the bar multiplied by the current traversing the coil seems to indicate that in this case the effect is produced by the attraction of the magnetic particles by the coil. But then it will be asked why so remarkable an augmentation of the effect is produced by the increase of tension in the case of the soft iron bars. When we are able to answer this question in a satisfactory manner, we shall probably have a much more complete acquaintance with...
Página 73 - Since it appeared that the purest and densest vapour alone gave the greatest number of lines, it became of interest to examine the spectra of compounds consisting of a metal combined with a nonmetallic element. Experiments with chlorides are recorded. It was found in all cases that the difference between the spectrum of the chloride and the spectrum of the metal was that under the same spark-conditions all the short lines were obliterated. Changing the spark-conditions, the final result was that...
Página 224 - An act to amend the law for the Prevention of Adulteration of Food and Drink, and of Drugs.