 ... of the precipitate. The quantity of Prussian blue produced from a given weight of pearlash or potash is generally about one-fourth of the weight of the pure potash contained in the salt ; but the larger the quantity operated upon at one time, the...  The Year-book of Facts in Science and Art - Page 1651840Full view - About this book
 | 1771 - 428 pages
...be mixed with one part of copperas, and muriatic-acid added in the usual way to brighten the color of the precipitate. The quantity of Prussian blue...formed, is next dissolved in water, and furnishes ferrocyanate of iron on the addition of sulphate of iron and muriatic-acid, according to the explanation... | |
 | 1839 - 512 pages
...lead to the adoption of various proportions of the ingredients used. • Take of potash or peailash, 2 parts ; coke, cinders, or coals, 2 parts ; iron...thus formed is next dissolved in water, and furnishes ferrocyanate of iron on the addition of sulphate of iron and muriatic acid, according to the explanation... | |
 | Perry Fairfax Nursey - 1839 - 514 pages
...in an open crucible or other convenient vessel, and expose the whole for half an hour in an open Are to a full red heat, stirring the mass occasionally....thus formed is next dissolved in water, and furnishes ferrocyanate of iron on the addition of sulphate of iron and muriatic acid, according to the explanation... | |
 | 1839 - 508 pages
...little jets of purple flame will be observed to arise from the surface of the mixture ; when the«e have almost ceased to appear, which will happen in...thus formed is next dissolved in water, and furnishes ferrocyanate of iron on the addition of sulphate of iron and muriatic acid, according to the explanation... | |
 | 1839 - 938 pages
...alkali, yielded only 295 gre. of Prussian blue, whilst one pound of the same pearlash yielded 1355 grs. The Prussian blue here spoken of, is the pure perferrocyanate...thus formed is next dissolved in water, and furnishes ferrocyanate of iron on the addition of sulphate ot iron and muriatic acid, according to the explanation... | |
 | 1839 - 464 pages
...alkali, yielded only 295 grs. of Prussian blue, whilst one pound of the same pearlash yielded 1355 grs. The Prussian blue here spoken of, is the pure perferrocyanate...thus formed is next dissolved in water, and furnishes ferrocyanate of iron on the addition of sulphate ot iron and muriatic acid, according to the explanation... | |
 | 1840 - 416 pages
...acid added in the usual * From the Transaction of the Society of Arts, &c. way to brighten the color of the precipitate. The quantity of Prussian blue...formed, is next dissolved in water, and furnishes ferrocyanate of iron on the addition of sulphate of iron and muriatic acid, according to the explanation... | |
 | 1840 - 812 pages
...combines with the carbon of the coke and with the nitrogen of the atmosphere, the oxygen of which has Iwen removed by passing through the fire, or by the coke...formed, is next dissolved in water, and furnishes ferrocyanate of iron on the addition of sulphate fi iron and muriatic acid, according to the explanation... | |
 | Charles Barlow - 1847 - 720 pages
...yielded only 296 grains of prussian-blue ; whilst one pound of the same pearlash yielded 1,3$5 grains. In this process, the potash is decomposed by the iron,...passing through the fire, or by the coke or cinders. 1 ' In the mixture the cyanide of potassium thus formed, is next dissolved in water, and furnishes... | |
 | 1856 - 606 pages
...yielded only 2.95 grains of Prussian blue, whilst one pound of the same pearlash yielded 1.3S6 grains. In this process the potash is decomposed by the iron,...passing through the fire, or by the coke or cinders. The cyanide of potassium thus formed is next dissolved in water, and furnishes ferrocyanide of iron... | |
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