Chemical News and Journal of Industrial Science, Tom 39Chemical news office., 1879 |
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Strona 8
... crystallisation , as described below , the gold and silver being obtained from the residue as before . Ores or sulphides containing much copper are roasted at a dull red heat , the mixing with roasted ore , roasting , and condensation ...
... crystallisation , as described below , the gold and silver being obtained from the residue as before . Ores or sulphides containing much copper are roasted at a dull red heat , the mixing with roasted ore , roasting , and condensation ...
Strona 16
... crystallisation , sometimes as the normal salt , sometimes as a modified salt . For instance , I recently put a considerable quantity of a 6 to I solution of sodium carbonate on a new sheet of thick blotting - paper . In about a minute ...
... crystallisation , sometimes as the normal salt , sometimes as a modified salt . For instance , I recently put a considerable quantity of a 6 to I solution of sodium carbonate on a new sheet of thick blotting - paper . In about a minute ...
Strona 17
... crystallisation in the depres- sions of the plate ; the crystals grow sometimes very rapidly , sometimes very slowly . In the latter case scratch- ing with a sharp point brings the crystals into contact with the solution , which ...
... crystallisation in the depres- sions of the plate ; the crystals grow sometimes very rapidly , sometimes very slowly . In the latter case scratch- ing with a sharp point brings the crystals into contact with the solution , which ...
Strona 18
... crystallised oxalic acid and potassium permanganate in powder , were mixed together , they liberated ozone on addition of water . Vacation intervening , the study of this and similar re- actions was not resumed until five months later ...
... crystallised oxalic acid and potassium permanganate in powder , were mixed together , they liberated ozone on addition of water . Vacation intervening , the study of this and similar re- actions was not resumed until five months later ...
Strona 26
... crystallisation , and assume a dull red colour . pears to be quite stable when exposed to the air , and even on heating it with water no sulphur dioxide is given off , but a drop of sulphuric acid added to the mixture is suffi- cient to ...
... crystallisation , and assume a dull red colour . pears to be quite stable when exposed to the air , and even on heating it with water no sulphur dioxide is given off , but a drop of sulphuric acid added to the mixture is suffi- cient to ...
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