 | Edward Turner - Chemistry - 1828 - 516 pages
...of the chloriile of iron, the volatility of which is considerable, from being dissipated in vapour. By this operation, the silica, though previously held...accurate mode of determining its quantity is by expelling lhe water by a red heat. This operation, however, should be done with care; since any adhering particles... | |
 | Chemistry - 1828 - 664 pages
...the chloride of iron, the volatility of which is considerable, from being dissipated in vapour. Dy this operation, the silica, though previously held...alumina. The peroxide of iron is then collected on a filler, edulcorated carefully until the washings cease to have an alkaline reaction, and is well dried... | |
 | Jacob Green - Chemistry - 1829 - 626 pages
...excess ; so as not only to throw down those oxides, but to dissolve the alumina. The peroxide of irop is then collected on a filter, edulcorated carefully...and is well dried on a sand bath. Of this hydrated pcr-oxide, forty-nine parts contain forty of anhydrous peroxide of iron. But the most accurate mode... | |
 | Edward Turner - Chemistry - 1832 - 638 pages
...alumina, a solution of pure potassa is added in moderate excess; so as not only to throw down those oxides, but to dissolve the alumina. The peroxide...have an alkaline reaction, and is well dried on a sand-bath. Of this hydrated peroxide, forty-nine parts contain forty of anhydrous peroxide of iron.... | |
 | Edward Turner - Chemistry - 1835 - 714 pages
...aluminn, a solution of pure potassa is added in moderate exeess; so as not only to throw down those oxides, but to dissolve the alumina. The peroxide of iron is then eolleeted on a tilter, eduleorated earefully until the washings eease to have an alkaline reaetion,... | |
 | Edward Turner - Chemistry - 1840 - 696 pages
...moderate excess ; so as not only to throw down those oxides, but to dissolve the alumina. The sesquioxide of iron is then collected on a filter, edulcorated...have an alkaline reaction, and is well dried on a sand-bath. Of this hydrated scsquioxide, 49 parts contain 40 of anhydrous sesquioxide of iron. But... | |
 | John Johnston - Chemistry - 1843 - 586 pages
...alumina, a solution of pure potassa is added in moderate excess ; so as not only to throw down those oxides, but to dissolve the alumina. The peroxide...have an alkaline reaction, and is well dried on a sand-bath. Of this hydrated peroxide, 49 parts contain 40 of anhydrous peroxide of iron. But the most... | |
 | John Johnston - Chemistry - 1846 - 496 pages
...alumina, a solution of pure potassa is added in moderate excess; so as not only to throw down those oxides, but to dissolve the alumina. The peroxide...have an alkaline reaction, and is well dried on a sand-bath. Of this hydrated peroxide, 49 parts contain 40 of anhydrous peroxide of iron. But the most... | |
 | John Johnston - Chemistry - 1848 - 492 pages
...added in moderate excess ; so as not only to throw down those oxides, but to dissolve the alii mina. The peroxide of iron is then collected on a filter,...have an alkaline reaction, and is well dried on a sand-bath. Of this hydrated peroxide, 49 parts contain 40 of anhydrous peroxide of iron. But the most... | |
| |
... oxides, but to dissolve the alumina. The peroxide of iron is then collected on a filter, edulcorated carefully until the washings cease to have an alkaline reaction, and is well dried on a sand bath. 