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Updated: June 26, 2025
At this period the principal object of attention in the manufacture of gas was its purification. Mr. D. Wilson, of Dublin, took out a patent for purifying coal gas by means of the chemical action of ammoniacal gas. Another plan was devised by Mr. Reuben Phillips, of Exeter, who obtained a patent for the purification of coal gas by the use of dry lime. Mr.
In the Museum of the Louvre we have a gilder's book, and the gold-leaf which it contains is as thin as the gold-leaf used by the German goldsmiths of the past century. Gold was applied to bronze surfaces by means of an ammoniacal solvent.
When the warm weather came, these manurings seemed to help it wonderfully, and it was, as I have before stated, a very promising crop; but the cold, ungenial weather we had through a great part of the summer, and the continued rain we had whilst the wheat was in flower, destroyed all the former promise: and the manuring with guano, so far from being beneficial, was very injurious so much so, that I believe every shilling's-worth of it applied to my wheat this year, made the crop a shilling worse than if nothing had been applied; and all ammoniacal manures had the same effect.
The noise made by the tens of thousands of moving bodies was as the noise of wind in a forest, while from the hot and sweating mass there rose a strange odor, penetrating, ammoniacal, savouring of wild life. On signal, the killing began. Dogs that had been brought there for that purpose when let into the corral refused, as had been half expected, to do the work.
In the process of distillation, the tar, after standing in tanks for some time, in order that any ammoniacal liquor which may be present may rise to the surface and be drawn off, is pumped into large stills, where a moderate amount of heat is applied to it. The result is that some of the more volatile products pass over and are collected in a receiver.
Upon adding to this solution ammoniacal sulphate of iron, 300 grains, and hyposulphite of soda, 300 grains, there are obtained, according to the duration of the immersion, yellowish, orange, rosy, and then bluish shades. Upon polarizing the ebullition, the blue tint gives way to yellow, and finally to a pretty grey. Silver, under the same circumstances, becomes very beautifully coloured.
Through these, and also through large rat-holes, there came up copious ammoniacal smells, which our mucous membrane resented from the first; and well it had fared with us had this been all. We had never been so near horses at night, and had no idea they made such an incessant noise.
For all at once there arose a peculiar rushing sound, and as everyone crouched as low as he could, he was conscious of the whistling of wings in rapid flight and the ammoniacal odour of a great stream of birds passing over them to reach the outlet from the passage into the open air. "It's all right, lads," shouted Briscoe. "It's only a flock of oil-birds that we have disturbed.
The sweat stiffening the hair upon her back and loins, as it dried, gave off a penetrating, ammoniacal odour that mingled with the stale perfume of sachet and wilted flowers. Presley and Vanamee stood looking at the deserted barn. There was a long silence. Then Presley said: "Well... what do you think of it all?"
When we had ascertained the fact of gases becoming fluid under the influence of cold or pressure, a curious property possessed by charcoal, that of absorbing gas to the extent of many times its volume, ten, twenty, or even as in the case of ammoniacal gas or muriatic acid gas, eighty or ninety fold, which had been long known, no longer remained a mystery.
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