Chemistry, Theoretical, Practical, and Analytical: As Applied and Relating to the Arts and Manufactures, Volume 2

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William Mackenzie, 1853
 

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Page 844 - And all king Solomon's drinking vessels were of gold, and all the vessels of the house of the forest of Lebanon were of pure gold ; none were of silver: it was nothing accounted of in the days of Solomon.
Page 844 - Surely there is a vein for the silver, And a place for gold where they fine it. Iron is taken out of the earth, And brass is molten out of the stone.
Page 711 - Muriatic acid, otherwise called hydrochloric acid, is saturated with peroxide of iron, as much as it will dissolve with the aid of heat. After straining the solution to remove impurities it is evaporated till it is considerably reduced in volume, and is then poured off into bottles of a convenient capacity. As it cools it solidifies into a brown semi-crystalline mass. The bottles are then well corked up and kept for use.
Page 629 - They take a half tub and, boring a hole through the bottom, press hard down into it a layer of spruce boughs, upon which they place the livers, and expose the whole apparatus to as sunny a place as possible. As the livers corrupt, the oil runs from them, and, straining itself through the spruce boughs, is caught in the vessel set under the hole in the tub's bottom.
Page 869 - The quantity of soap consumed by a nation would be no inaccurate measure whereby to estimate its wealth and civilization.
Page 868 - Humboldt's estimate of the total annual produce of the mines of the new world at the beginning of the present century, taking the dollar at 4s.
Page 861 - Upon the large scale, small portions of gold may be most economically separated from large quantities of silver, by heating the finely granulated alloy in sulphuric acid : the gold remains in the form of a black powder, and the sulphate of silver may be decomposed by the action of metallic copper ; the silver is...
Page 672 - ... thus coated, the other is coated in like manner ; and the chassis is ready to receive the flowers. These are now thinly sprinkled, or rather laid one by one upon the surface of the fat, where they are allowed to remain until the next day or day after, when they are removed and fresh flowers supplied. The chassis, charged with fat and flowers, are stacked one upon the other, forming in fact a number of little rectangular chambers, the upper and lower...
Page 673 - ... tasteless and colourless as when first poured in. This indicates the completion of the process. As atmospheric pressure is an important element in the operation, it will not answer to shut it off by closing the top of the displacer, without making some compensation ; and, therefore, a communication between the upper and lower vessels is established by means of a latent-tube arrangement...
Page 673 - As soon as the first portion f sinks into the benzoin, a fresh addition must be made ; and thus the succeeding relays go on displacing those which preceded them without mingling with them. Each stratum becomes more and more charged with soluble matter as it descends ; and when it reaches the bottom of the mass, under the pressure of the superincumbent liquor, it runs out saturated. When, by successive additions of fresh alcohol, the benzoin under treatment has become exhausted, the liquid passes...

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