 | Leopold Gmelin - Chemistry - 1850 - 536 pages
...solution to crystallize by cooling. The crystals are then washed with a small quantity of cold water; dissolved in the smallest possible quantity of boiling water; and the solution left to crystallize by cooling. In this manner, needles are obtained f inch in length, and amounting... | |
 | Chemistry - 1850 - 524 pages
...solution to crystallize by cooling. The crystals are then washed with a small quantity of cold water; dissolved in the smallest possible quantity of boiling water; and the solution left to crystallize by cooling. In this manner, needles are obtained f inch in length, and amounting... | |
 | Leopold Gmelin - Chemistry - 1850 - 500 pages
...solution to crystallize by cooling. The crystals are then washed with a small quantity of cold water; dissolved in the smallest possible quantity of boiling water; and the solution left to crystallize by cooling. In this manner, needles are obtained f inch in length, and amounting... | |
 | British Pharmaceutical Conference - 1893 - 540 pages
...Calcium and Magnesium. FW Mar. (Amer. Journ. Sc., xliii. 521-525.) One gram of the mixed chlorides is dissolved in the smallest possible quantity of boiling water, and the solution gradually and intimately mixed with 25 cc of fuming hydrochloric acid ; after cooling, the precipitation... | |
 | Friedrich Wöhler - Analytical chemistry - 1871 - 356 pages
...small red-hot crucible, and observing whether the mass is perfectly white after deflagration. If it be black and carbonaceous, more nitre must be added....mass thus produced is carefully heated till all the nitrous and nitric acids are expelled, a point to which great attention must be paid. On cooling, the... | |
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... larger quantity of water; allows the insoluble portion to subside and decants; evaporates the clear solution rapidly; again decants from the freshly precipitated peroxide of manganese; and leaves the solution to crystallize by cooling. The crystals... 