Elements of Chemistry: Containing the Principles of the Science, Both Experimental and Practical...Dayton and Saxton, 1841 - 395 sider |
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Vanlige uttrykk og setninger
absorbs action affinity alcohol alkalies ammonia animal antimony arsenic atmosphere baryta battery binoxide bodies boiling bromine burns called caloric carbonic acid charcoal chemical chemical affinity chloric acid cold color colorless combine combustion compounds condensed conductor contains converted cooling copper crystals currents decomposed decomposition deliquescent dilute dissolved electricity Equiv exposed Fahr flame formed fuses gases glass tube gold hence hydrate hydrochloric acid hydrogen hydrosulphuric acid ignited inches insoluble iodine iron light lime liquid magnetic manganese matter mercury mineral mixed mixture nitrate nitric acid nitrogen obtained odor oxide oxygen oxygen gas particles passing peroxide phosphorus plates platinum pole potassa potassium precipitated prepared prisms produced Properties protoxide pure quantity rays red heat retort salts Sesquioxide silver soda sodium solid soluble in water solution substances sulphate sulphuret sulphuric acid surface Symb taste temperature theory vapor vegetable vessel voltaic weight wire yellow zinc
Populære avsnitt
Side 118 - it seems probable that God in the beginning formed matter in solid, massy, hard, impenetrable, moveable particles, of such sizes, figures, and with such other properties, and in such proportion to space, as most conduced to the end for which he formed them, and that these primitive particles, being solids, are incomparably harder than any porous bodies compounded of them ; even so very hard as never to wear or break to pieces ; no ordinary power being able to divide what God himself made one in the...
Side 232 - For this purpose, five or six pieces of potassium, of the size of peas, were introduced into a glass tube, the sealed extremity of which was bent into the form of a retort, and upon the potassium were laid fragments of chloride of magnesium ; the latter being then heated to near its point of fusion, a lamp was applied to the potassium, and its vapor transmitted through the mass of the heated chloride.
Side 224 - Sulphuric acid a salt, which by its taste and form is easily recognised as Glauber's salt, or sulphate of soda. 2. All its salts are soluble in water, and are not precipitated by any reagent. 3. On exposing its salts by means of platinum wire to the blowpipe flame, they communicate to it a rich yellow color.
Side 384 - OF, from torqueo, to twist; a term applied by Coulomb to denote the effort made by a thread which has been twisted to untwist itself. TRANSPARENT ; a term to denote the quality of a substance which not only admits the passage of light, but also of the vision of external objects. TRITURATED, from trituro, to thrash ; reduced to powder.
Side 368 - They may be examined by a pair of compasses or a piece of paper, as before described (1314^, to ascertain how nearly equal intervals on the scale of numbers accord with equal proportions between the numbers at the extremities of those- intervals, and thus the degree of error in them, and the part where it exists to the greatest extent, may be observed : but it will be useless to do so with the view of finding one so accurate as to dispense with calculation in exact analytical experiments. Those scales...
Side 63 - ... freezing point, or 32 degrees, until all the ice is melted. This principle is of vast consequence to the world, and particularly to the inhabitants of cold climates, where the ground is covered with snow and ice, a part or the whole of the year. In some northern climates, and particularly in Russia, the transition from the cold of winter to the heat of summer, takes place within a few days, the ground being covered several feet deep with the accumulated snow of the winter. Now were it not for...
Side 383 - A rhombus is that which has all its sides equal, but its angles are not right angles.
Side 367 - ... or (14) sulphate of lead are obtained, it will be necessary that he should also know the proportion which either of them contains of dry sulphuric acid. He may also endeavour to ascertain the same point by means of (15) the quantity of pure potassa, or (16) of carbonate of potassa requisite for the precipitation of the copper.
Side 23 - ... in which they unite ; and finally, after collecting and arranging an extensive series of insulated facts, general conclusions may be deduced from them. Hence chemistry may be defined the science, the object of which is to examine the relations that affinity establishes between bodies, ascertain with precision the nature and constitution of the compounds it produces and determine the laws by which its action is regulated.
Side 309 - The bi-carbonate of potash is prepared by transmitting a current of carbonic acid gas through a solution of the carbonate. This salt contains 44 parts of carbonic acid and 48 parts of potash, making its equivalent 92. It also contains 9 parts, or one proportion of water of crystallization.