A Manual of Practical AssayingLongmans, Green, and Company, 1868 - 697 páginas |
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Página xxi
... precipitate , 288. Treat- ment of the alkaline solution poured off from the first black precipitate ; determination of alumina and remainder of phos- phoric acid , 289. Determination of potash and soda , 290 . Determination of sulphur ...
... precipitate , 288. Treat- ment of the alkaline solution poured off from the first black precipitate ; determination of alumina and remainder of phos- phoric acid , 289. Determination of potash and soda , 290 . Determination of sulphur ...
Página 35
... precipitate is heavier than water , the bottle when filled again will weigh more than without the precipitate , and the difference between the two weights furnishes the means of calculating the weight of the precipitate . In case the ...
... precipitate is heavier than water , the bottle when filled again will weigh more than without the precipitate , and the difference between the two weights furnishes the means of calculating the weight of the precipitate . In case the ...
Página 36
... precipitate he obtains by a certain chemical manipulation , is a substance of known composition and specific gravity . Supposing it to be sulphate of lead , and the bottle when filled with water at the normal temperature to weigh 70 ...
... precipitate he obtains by a certain chemical manipulation , is a substance of known composition and specific gravity . Supposing it to be sulphate of lead , and the bottle when filled with water at the normal temperature to weigh 70 ...
Página 37
... precipitate . Hence the rule , which is of great convenience in volu- metric analysis , that to find the weight of a moist precipitate which is a compound of known specific gravity , weigh it in a specific gravity bottle or some other ...
... precipitate . Hence the rule , which is of great convenience in volu- metric analysis , that to find the weight of a moist precipitate which is a compound of known specific gravity , weigh it in a specific gravity bottle or some other ...
Página 122
... precipitated in a gela- tinous state this is to be washed until free from sulphate of ammonia . The dense alumina is then mixed with water and worked up into a paste , the precipitated gelatinous alumina being kneaded in from time to ...
... precipitated in a gela- tinous state this is to be washed until free from sulphate of ammonia . The dense alumina is then mixed with water and worked up into a paste , the precipitated gelatinous alumina being kneaded in from time to ...
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Términos y frases comunes
added alloy ammonia amount antimony aqua regia arsenic ascertained assay bismuth black flux blowpipe boiling borax button calcined carats carbonate of soda carbonic acid cent charcoal chloride of silver clay cobalt colour combustion containing cooling copper Crown 8vo crucible cubic cubic centimetres cupel decomposed dilute dissolved Edition employed excess filter flame flask fluid fuel furnace fused fusible fusion gives glass globule gold grains grammes heat hydrochloric acid ignited inches iron lime liquid litharge manganese matter melted mercury metal method mineral mixed mixture muffle nickel nitrate nitric acid normal solution obtained operation Ounce oxide oxide of lead oxidising oxygen permanganate peroxide pipette placed plate platinum potash potassium powder precipitate produced proportion protoxide pulverised pure readily reduced roasting salt silica slag small quantity sodium specific gravity substance sulphate of lead sulphide sulphuric acid temperature thousandths tion tube vessel washed weight Woodcuts zinc
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