Chemical News and Journal of Industrial Science, Volume 39Chemical news office., 1879 - Chemistry |
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Page 5
... residue is apt to be very much more puzzling than edifying , and , as a matter of fact , such an analysis is by no means necessary to the purpose of selecting waters for boiler use . A much more simple method of procedure has stood one ...
... residue is apt to be very much more puzzling than edifying , and , as a matter of fact , such an analysis is by no means necessary to the purpose of selecting waters for boiler use . A much more simple method of procedure has stood one ...
Page 6
... residue is washed , dried at 110 ° C . , and weighed , then burnt and weighed again . The weight in centi- grammes ... residues gives solids deposited on simply boiling . We have now to add to this the calcium sulphate 12 minium ...
... residue is washed , dried at 110 ° C . , and weighed , then burnt and weighed again . The weight in centi- grammes ... residues gives solids deposited on simply boiling . We have now to add to this the calcium sulphate 12 minium ...
Page 7
... residue from the first charge is turned charcoal - dust , or other carbonaceous matter is now spread , downwards , and a fresh charge of mixture introduced . In over on top of it , each charge in the roaster is moved another hour a ...
... residue from the first charge is turned charcoal - dust , or other carbonaceous matter is now spread , downwards , and a fresh charge of mixture introduced . In over on top of it , each charge in the roaster is moved another hour a ...
Page 8
... residue nearly free therefrom . The copper is then found in the residue principally as sulphide . This residue is roasted at a dull red heat , and the copper is extracted by treatment with condenser liquor and crystallisation , as ...
... residue nearly free therefrom . The copper is then found in the residue principally as sulphide . This residue is roasted at a dull red heat , and the copper is extracted by treatment with condenser liquor and crystallisation , as ...
Page 18
... residue , and a minute amount of potassium chloride . A trace of chlorine was likewise found in the oxalic acid . Analyses of other nominally chemically pure preparations were made with similar results , the least impure containing ...
... residue , and a minute amount of potassium chloride . A trace of chlorine was likewise found in the oxalic acid . Analyses of other nominally chemically pure preparations were made with similar results , the least impure containing ...
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acetic acid action alcohol alizarin alkali ammonia amount analysis aniline apparatus atomic aurin blue body boiling Boy Court calcium carbon carbonic acid cent chambers CHEMICAL NEWS Office Chemical Notices Chemistry chemists chloric acid chloride College colour compounds containing copper crystallisation crystals determined detonation dilute dissolved distillation ether experiments explosive formed furnace gases give glass grms gun-cotton heat hydrochloric acid hydrogen iodide iodine iron Laboratory lime lines liquid London Ludgate Hill magnetic manganese manufacture Messrs metal method mixture molecular molecules nitrate nitre nitric acid nitrogen Notices from Foreign obtained ordinary organic matter oxide oxidised oxygen paper Patent phosphorus plates platinum potash potassium precipitate present produced Prof quantity reaction residue Royal salts sample Society soda sodium soluble solution specific gravity spectrum substance sugar sulphate sulphide sulphuric acid temperature terpene tion tube vapour weight William zinc