The Elements of Inorganic ChemistryLongman & Company, 1858 - 216 páginas |
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Página 20
... become liquid : others undergo scarcely any change . Salts differ greatly in their degrees of solubility ; some dissolve in less than their weight of water , while others are quite insoluble . Soluble salts crystallise out when their ...
... become liquid : others undergo scarcely any change . Salts differ greatly in their degrees of solubility ; some dissolve in less than their weight of water , while others are quite insoluble . Soluble salts crystallise out when their ...
Página 29
... becomes latent in converting the ice into water . It will take 10 hours to liquefy the ice . The water in this ... become latent . If we take 1 oz . of powdered ice or snow , and 1 oz . of water at 172 ° , the ice will be melted , and we ...
... becomes latent in converting the ice into water . It will take 10 hours to liquefy the ice . The water in this ... become latent . If we take 1 oz . of powdered ice or snow , and 1 oz . of water at 172 ° , the ice will be melted , and we ...
Página 30
... become solid , and the sud- den conversion of the liquid into a solid causes it to part with its heat ; if a thermometer be intro- duced the mercury in it will rise 30 ° or 40 ° ; this is precisely what takes place in the freezing of ...
... become solid , and the sud- den conversion of the liquid into a solid causes it to part with its heat ; if a thermometer be intro- duced the mercury in it will rise 30 ° or 40 ° ; this is precisely what takes place in the freezing of ...
Página 31
... become of this enormous amount of heat ? It has been rendered latent in the steam , and this can be demonstrated by condensing the steam , and observing the amount of heat evolved . Let the steam be con- ducted into ice - cold water ...
... become of this enormous amount of heat ? It has been rendered latent in the steam , and this can be demonstrated by condensing the steam , and observing the amount of heat evolved . Let the steam be con- ducted into ice - cold water ...
Página 35
... becomes red - hot it can be easily bent into the required shape . A little practice with a few pieces of glass tube over a lamp will soon give the experi- menter more knowledge than any written instructions . India - rubber tubing ...
... becomes red - hot it can be easily bent into the required shape . A little practice with a few pieces of glass tube over a lamp will soon give the experi- menter more knowledge than any written instructions . India - rubber tubing ...
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Términos y frases comunes
affinity alkaline alumina ammonia anhydrous antimony arsenic baryta binoxide of nitrogen bleaching blowpipe blue bodies boiling burns calcium called carbonate of ammonia carbonate of lime carbonate of soda carbonic acid caustic potash charcoal Chemical Properties chlorate of potash chloric acid chloride chromate chromium coal cobalt colour colourless combining equivalent combustion common air compound contains copper crystallised crystals decomposed decomposition dissolved evaporated filtered flame flask forms gas jar gases glass green hydrate hydrochloric acid hydrogen hydrosulphuric acid hyponitric acid inch insoluble in excess iodine iron lamp liquid magnesia manganese melted mercury metal mixed mixture NaO,CO2 neutralise nitric acid nitrogen obtained odour oxalate oxide oxygen passing phosphate Phosphoric acid phosphorus platinum potassium powder precipitate produced protoxide pure quantity red heat retort sesquioxide silicate silver sodium solid soluble soluble in water solution specific gravity suboxide substance sulphuric acid Symbol temperature teroxide tube vapour weight yellow zinc
Pasajes populares
Página 88 - The temperature may be increased by mixing hydrogen and oxygen in the proportion of two volumes of the former to one of the latter, and burning it from a safety jet.
Página 14 - Specific weight, or specific gravity, is the number which expresses the ratio which the weight of a cubic inch of the body bears to the weight of a cubic inch of distilled water at a temperature of 15-5° C.
Página 209 - Brass consists of about 30 parts of zinc and 70 of copper. Copper is sometimes externally converted into brass by exposure, when at a red heat, to the vapour of zinc. The gold wire of Lyons is manufactured from copper bars prepared in this manner. Gun metal consists of 90 parts of copper and 10 of tin. Bell metal contains a larger proportion of tin. Bronze consists of 91 parts of copper, 2 of tin, 6 of zinc, and ] of lead.
Página 43 - On preparing a filter, the piece of paper should be first examined, by looking through it against the light, to ascertain that it is free from holes. The simplest filter is made by folding the paper twice in opposite directions, in such manner as to bring the four corners together, and by opening one corner from the other three, so as to produce an irregular conical cavity. Such a filter being put into a funnel, and then filled with water, will immediately permit its passage : but from the similarity...
Página 123 - ... artificial one is formed by sinking a shaft into the rock-salt, and, if necessary, introducing water. This, when saturated, is pumped up, and evaporated more or less rapidly in large iron pans. As the salt separates, it is removed from the bottom...
Página 41 - When chalk is dissolved in hydrochloric acid, or copper dissolved with nitric acid, we have examples of chemical solution. A liquid can only dissolve a certain quantity of a solid substance. This quantity will vary according to the solid and liquid employed. When the solvent or liquid contains as much of the solid matter as it is capable of dissolving, it is said to be saturated, as all additional quantities of the solid fall to the bottom. The solubility of most substances is increased by an increase...
Página 24 - O3 are symbols of basic salts. It will be noticed, on examining the above symbols, that neutral salts of monobasic acids contain as many equivalents of acid as there are equivalents of oxygen in the base, and neutral salts of bibasic and tribasic acids one half and one third as many, respectively. This rule must be kept in mind when writing the symbols of salts. Compound Radicals. — There is a large class of substances which, although compound, nevertheless act in chemical changes exactly as if...
Página 33 - A cubic inch of water will make a cubic foot of steam ; that is, the water has been expanded by heat to seventeen hundred times its original bulk. The steam is very elastic; the water was not. When we say that a cubic inch of water will form a cubic foot of steam, we mean that it will do so when the steam is allowed to rise naturally from the water .without...
Página 11 - ... of the elements being constant. 2. When any body is capable of uniting with a second in several proportions, these proportions bear a simple relation to each other. 3. If a body. A, unite with other bodies, B, C, D, the quantities of B, C, D...
Página 121 - ... vitriol, in its crystallized state, has the composition CuSO4,5Aq, its molecular weight being 249.4. In this state it forms large blue crystals, which have a nauseous metallic taste, and a density of 2.27. It is soluble in between two and three times its weight of water at the ordinary temperature, and in less than its own weight of boiling water : the solution has a blue color, and a distinctly acid reaction. At a temperature of about 204° C. (400° F.) the salt becomes anhydrous and crumbles...