 | Royal Society (Great Britain) - 1811 - 462 페이지
...they are applied, are known not to be salts, but metallic compounds analogous to ox . . . . MDCCCXI. Z To discover whether any magnesia was contained amongst...digested in ammonia, and the whole dried and made red hot. The alumina left, weighed 3.1 grains. Being suspected to contain still some sulphuric acid, this... | |
 | William Nicholson - 1811 - 866 페이지
...ignited. Water <!:<! extract .-oi ur saline matter from this ignited alumina, but it had not at till the appearance of sulphate of magnesia, and proved...compound sulphate of alumina and ammonia, in regular octahedron*. This ulurn and alumina were again mixed and digested in ammonia, and the whole dried and... | |
 | John Mason Good - 1819 - 482 페이지
...alumina, it was dissolved in sulphuric acid, the solution evaporated to a dry slate, and ignited. \Vater did extract some saline matter from this ignited alumina, but it had not at all the appearance ofsulphat of magnesia, and proved to be some sulphat of alumina which had escaped decomposition ; for... | |
 | 1814 - 296 페이지
...fubftances to which they are applied are known not to be falts, but metallic compounds analogous to oxides. evaporated to a dry state, and ignited. Water did...digested in ammonia, and the whole dried and made red hot. The alumina left, weighed 3.1 grains. Being suspected to contain still some sulphuric acid, this... | |
 | William Jones Rhees - 1880 - 282 페이지
...that was soluble was dissolved. What remained was silica, and, after being made red hot, weighed 4.9 grains. The muriatic solution, which had been decanted...digested in ammonia, and the whole dried and made red hot. The alumina left, weighed 3.1 grains. Being suspected to contain still some sulphuric acid, this... | |
 | William Jones Rhees - 1880 - 292 페이지
...discover whether any magnesia was contained amongst this alumina, it was dissolved in sulphuric acidrthe solution evaporated to a dry state, and ignited. Water...digested in ammonia, and the whole dried and made red hot. The alumina left, weighed 3.1 grains. Being suspected to contain still some sulphuric acid, this... | |
 | 1881 - 856 페이지
...that was soluble was dissolved. What remained was silica, and, after being made red hot, weighed 4.9 grains. The muriatic solution, which had been decanted...digested in ammonia, and the whole dried and made red hot. The alumina left, weighed 3.1 grains. Being suspected to contain still some sulphuric acid, this... | |
 | Smithsonian Institution - 1881 - 834 페이지
...the matter left made red hot It was alumina. To discover whether any magnesia was contained ampngst this alumina, it was dissolved in sulphuric acid,...digested in ammonia, and the whole dried and made red hot. The alumina left, weighed 3.1 grains. Being suspected to contain still some sulphuric acid, this... | |
 | Smithsonian Institution - 1881 - 850 페이지
...dissolved in sulphuric acid, the solution evaporated to a dry state, and ignited. Water did extract eome saline matter from this ignited alumina, but it had...digested in ammonia, and the whole dried and made red hot. The alumina left, weighed 3.1 grains. Being suspected to contain still some sulphuric acid, this... | |
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Water did extract some saline matter from this ignited alumina, but it had not at all the appearance of sulphate of magnesia, and proved to be some sulphate of alumina which had escaped decomposition, for on an addition of sulphate of ammonia to it, it... 