Elements of Inorganic Chemistry: Including the Applications of the Science in the Arts

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Blanchard and Lea, 1858 - 852 pages
 

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Page 437 - The oxide of manganese is thrown into a flask containing 1£ oz. of strong hydrochloric acid, diluted with £ oz. of water, and a gentle heat applied. The sulphate of iron is gradually added in small quantities to the acid, so as to absorb the chlorine as it is evolved ; and the addition of that salt continued till the liquid, after being heated, gives a blue precipitate with the red prussiate of potash, and has no smell of chlorine, which are indications that the protosulphate of iron is in excess.
Page 750 - The natural excitation of osmose in the substance of the membranes or cell-walls dividing such solutions, seems therefore almost inevitable. In osmose there is, further, a remarkably direct substitution of one of the great forces of nature by its equivalent in another force — the conversion, as it may be said, of chemical affinity into mechanical power. Now what is more wanted in the theory of animal functions than a mechanism...
Page 334 - The salt and the manganese were well mixed and used in charges of 3$ pounds of the mixture. The acid and water were mixed in a wooden tub, the water being put in first, and then about half the acid ; after cooling the other half was added. The proportions of water and acid are 9 measures of the former to 10 of the latter.
Page 450 - ... precipitate may be obtained by adding to a protosalt of iron a mixture of yellow prussiate of potash, chloride of soda, and hydrochloric acid. The tint of this blue is lighter and more delicate than that of prussian blue. It is occasionally used by the calico-printer, who mixes it with...
Page 60 - ... a great quantity of heat. It is, therefore, evident that the melting ice receives heat very fast, but the only effect of this heat is to change it into water, which is not in the least sensibly warmer than the ice was before. .A thermometer, applied to the drops or small streams of water, immediately as it comes from the melting ice, will point to the same degree as when it is applied to the ice itself, or if there is any difference it is too small to deserve notice. A...
Page 88 - ... fissure in it. He was surprised to find that the water of the pneumatic trough rose into this jar one and a half inches in twelve hours, and that, after twenty-four hours, the height of the water was two inches two -thirds above the level of the water-trough.
Page 658 - ... the molecular forces existing within the body. In the former case, the molecules, during the passage from one state to the other, have a certain velocity imparted to them, which is immediately converted into heat ; in the latter case, the velocity of their movement, and consequently the temperature of the body, is diminished. In the passage from the solid to the liquid state, the molecules, although not removed from the spheres of their mutual attractions, nevertheless change their relative positions...
Page 108 - ... sulphate of lead, instead of sulphate of the oxide of lead ; nitrate of potassa, instead of nitrate Of the oxide of potassium. In case more than one basic oxide of the same element is capable of 476 477 combining with acids, the distinguishing prefix of each is retained in the name of its salts ; as sulphate of protoxide of iron, and sulphate of sesquioxide of iron. These salts are also often called respectively protosulphate and persulphate of iron, the prefixes being understood to refer to...
Page 253 - ... the power of developing an infectious or contagious endemic or epidemic ; on the other hand, as Professor Graham has justly remarked, such infectious matters as are accessible to us — for example, " the matter of cow-pox may be dried in the air, and is not in the- least degree volatile. Indeed, the volatility of a body implies a certain simplicity of constitution, and limit to the number of atoms in its integrant particle, which true organic bodies appear not to possess. Again, the source of...
Page 651 - At all the points not situate in the centre of the tree, wood possesses three unequal axes of calorific conduction, which are at right angles to each other. The first, and principal axis, is parallel to the fibre of the wood ; the second, and intermediate axis, is perpendicular to the fibre and to the ligneous layers; while the third and least axis is perpendicular to the fibre and parallel to the layers.

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