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As a consequence, the concentration of the silicate ions in the solution is reduced nearly to zero, and more silicate dissolves to re-establish the disturbed equilibrium. This process repeats itself until all of the silicate is brought into solution.
Determine the percentage of iron in a sample of limonite from the following data: Sample = 0.5000 gram. KMnO used = 50 cc. 1 cc. KMnO = 0.005317 gram Fe. FeSO used = 6 cc. 1 cc. FeSO = 0.009200 gram FeO. !Answer!: 44.60%. If 1 gram of a silicate yields 0.5000 gram of Fe O and Al O and the iron present requires 25 cc. of 0.2 N KMnO , calculate the percentage of FeO and Al O in the sample.
The other was composed of the same amount of the silicate with six drops of dilute phosphoric acid and six grains of ammonium phosphate. He filled sterilised tubes, sealed them hermetically, and heated them to 125 or 145 degrees, Centigrade, although 60 or 70 degrees would have killed any bacteria remaining in them. Next he exposed them to sunlight in a south window for from two to four months.
Now soaps are frequently found in the market that scarcely deserve this name. Mineral soap, cold water soap, etc., are the names inscribed on the placards behind which is buried a preparation consisting for the greater part of water-glass. The well-known water-glass is a silicate of soda or potash dissolved in free or caustic soda, or potash.
"When you looked at your watch I noticed it was three hours slow. That must mean the Pacific coast, or near it. Therefore you've just got in from the Far West and haven't thought to rectify your time. At a venture I'd say you were a mining man from down around the Ray-Kelvin copper district in Arizona. That peculiar, translucent copper silicate in your scarf-pin comes from those mines."
They had entered a large stone building, into which led numerous very heavy silver wires. The insulators were silicate glass. Their height suggested a voltage of well over one hundred thousand, and such heavy cables suggested a very heavy amperage, so that a tremendous load was expected.
Right in the midst of this half-sad, half-sentimental reverie, she heard a familiar voice behind her say earnestly: "And allophite is the new hydrous silicate of alumina and magnesia, much resembling pseudophite, which Websky found in Silesia."
It is a remarkably excellent imitation silicate of alumina; the weight, color, and hardness, the measurements table, girdle, and culasse all correspond exactly with the original. It lacks only in density, and perhaps a trifle in but no; it would require an expert test to determine that it was not a true ruby." "Then," I eagerly pursued, "even an expert might be imposed upon by the replica?"
P. got himself analysed that day by Dr. ALLEN, and he was found to consist principally of carbonate of Lime; Silicate of Potassa; Iodide of Magnesia; and Chloride of Sodium; with a strong trace of Sulphate of Strontia. At night, however, he was able to attend the hop in the grand saloon. For a time Mr. P. danced with one girl right along.
Close to our ranch was another of Nature's wonders, a petrified forest, quite unique in that the exposed tree trunks are solid masses of agate, chalcedony, jasper, opal and other silicate crystals, the variety of whose colouring, with their natural brilliancy, makes a wonderfully beautiful combination.
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