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I believe the guide-book says that they are formed of carbonate of lime and carbonate of magnesia in chemical composition; but even if this be true, it need not prejudice any candid observer against them.
"Are you ready to accept contracts for putting out skyscraper blazes in all big cities?" "Not yet," was the answer. "But I'm going to make another attempt, Ned." "You mean another experiment?" "Yes, I have evolved a new combination of chemicals, using something of the carbonate idea as a basis. I found that I couldn't get away from that, much as I wanted to.
On the interior of the pipe could be seen patchy lumps of white which projected about an eighth of an inch above the internal surface. As the pipe dried in the warm night air, they could easily be brushed off as a white powder. "What is it strychnine?" I asked. "No," he replied, regarding it thoughtfully with some satisfaction. "That is lead carbonate.
As urea is converted into ammonium carbonate in the first stage of the action of the ferment, a supply of salifiable base would at first be present, but would gradually be consumed. The result of the experiment showed that only one-half the quantity of nitric acid was formed in the simple urine solution as in similar solutions containing calcium and sodium carbonate.
The polishing pomades are generally perfumed with essence of myrbane. Polishing powders are prepared as follows: 4 lb. magnesium carbonate, 4 lb. chalk, and 7 lb. rouge are intimately mixed. 4 lb. magnesium carbonate are mixed with 150 grains fine rouge. An excellent and harmless polishing water is prepared by shaking together 250 grains floated chalk, 1 lb. alcohol, and 20 grains ammonia.
Ammonium carbonate, 200 grains, or 1 heaping spoonful. Ammonia, 28 per cent, 6 ounces, or three-eighths pint, or 12 spoonfuls. Water, 4 ounces, or one-fourth pint, or 8 spoonfuls. Powder the persulphate and carbonate together, dissolve in the water and add the ammonia; mix thoroughly and allow to stand for one hour before using. It should be kept in a strong bottle, tightly corked.
In the second, existing animals and plants spring from the living tissues of preceding animals and plants, while existing minerals spring from the chemical affinity of separate elements. Carbonate of soda is not formed, by a process of reproduction, from other carbonate of soda, but directly by the suitable juxtaposition of carbon, oxygen, and sodium.
So it was that she stood with face averted lest he should see her eyes and read the rebellious hope in them. And in spite of the precaution he both saw and read, and made answer to the Rajah's ultimatum accordingly. "Do your worst, Mr. Darrah. We have some twenty miles of steel to lay to take us into the Carbonate yards. That steel shall go down in spite of anything you can do to prevent it."
In some cases, hot ashes are put upon the head to singe the hair to its very roots, and they then literally weep "in dust and ashes." Among some of the Murray tribes, a mourning cap is worn by the women, made two or three inches thick of carbonate of lime. It is moulded to the head when moist around a piece of net work; the weight is eight pounds and a half.
The percentages of air-slaked material in hydrated limes are widely variable, and no manufacturer can standardize his product on the market surely for the benefit of the farmer. In some instances the product is adulterated with refuse material in finely pulverized condition. Air-Slaked Lime. A pure limestone is a carbonate, and the chemical formula is CaCO3.
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