Chemical News and Journal of Industrial Science, Tomy 141-142Chemical news office., 1930 |
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Strona 123
... copper , enriched with a roasted copper precipitate containing 72 per cent . copper which brought the copper content of the ore charge to approximately 12 per cent . The leaching soiution consisted of a 21 per cent . sulphuric acid ...
... copper , enriched with a roasted copper precipitate containing 72 per cent . copper which brought the copper content of the ore charge to approximately 12 per cent . The leaching soiution consisted of a 21 per cent . sulphuric acid ...
Strona 190
... copper redeposi- tion that accompanies atmospheric cor- rosion . A few remarks are made on the atmospheric corrosion of copper - nickel alloys . The Open - air Corrosion of Copper . Part II . The Mineralogical Relationships of Cor ...
... copper redeposi- tion that accompanies atmospheric cor- rosion . A few remarks are made on the atmospheric corrosion of copper - nickel alloys . The Open - air Corrosion of Copper . Part II . The Mineralogical Relationships of Cor ...
Strona 24
... copper . Its salts are coloured , and though occupying the electro- negative part of the table the elements are positive , or rather more positive than their congeners . Whatever acid qualities their higher oxides have that quality ...
... copper . Its salts are coloured , and though occupying the electro- negative part of the table the elements are positive , or rather more positive than their congeners . Whatever acid qualities their higher oxides have that quality ...
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Superphosphate industry in Japan 122 | 9 |
Notes on the Casting of Refractories 380 | 13 |
Tubes | 27 |
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