The Elements of Experimental Chemistry, Volume 1R. Desilver, 1819 |
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Termos e frases comuns
absorbed acid gas affinity alkali alumine ammonia apparatus appears atmospheric air atom barytes base Berthollet Berzelius bodies bottle bulk carbonic acid charcoal chemical chemical affinity Chim chloric acid chlorine colour combination combustion common air compound condensed consists contains cooling copper crystals Dalton Davy decomposed decomposition diluted dissolved distilled earth effect electricity equal evaporation experiment exposed Fahrenheit filled flame fluid furnace galvanic gases Gay Lussac gazometer glass glucine grains heat hydrogen hydrogen gas iron lime liquid magnesia measures mercury metal mixture muriatic acid Nicholson's Journal nitrate nitric acid nitrogen nitrous gas nitrous oxide obtained oxide oxygen gas phosphorus plate portion potassium pound precipitated produced properties proportion pure quicksilver retort salt saturated Sir H soda solid soluble solution specific gravity strontites sub-carbonate substance sufficient sulphureted sulphuric acid surface temperature thermometer Thomson's Annals tion tube vapour vessel volume weight wire zinc
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Página xv - Studies serve for delight, for ornament, and for ability. Their chief use for delight, is in privateness and retiring; for ornament, is in discourse; and for ability, is in the judgment and disposition of business...
Página 182 - By this arrangement some brilliant phenomena were produced. The potash appeared a conductor in a high degree, and as long as the communication was preserved, a most intense light was exhibited at the negative wire, and a column of flame, which seemed to be owing to the development of combustible matter, arose from the point of contact.
Página 182 - There was a violent effervescence at the upper surface ; at the lower, or negative surface, there was no liberation of elastic fluid ; but small globules having a high metallic lustre, and being precisely similar in visible characters to quicksilver, appeared, some of which burnt with explosion and bright flame, as soon as they were formed, and others remained, and were merely tarnished, and finally covered by a white film which formed on their surfaces.
Página xiii - Fig. 1, there is an interstice between the mass of tin connecting the ten copper sheets, and that connecting the ten zinc sheets. The screw forceps, appertaining to each of the tin masses, may be seen on either side of the interstice: and likewise a wire for ignition held between them.
Página 136 - In the use of this apparatus, the bottle is first filled with the liquid employed, which is best prepared by boiling a mixture of quick lime and sulphur with water, filtering the solution, and agitating it for some time in a bottle half filled with common air. The tube, filled with the gas under examination, or with common air, if that be the subject of the experiment, is next put into its place, and, on inverting the instrument, the gas ascends into the bottle, where it is brought extensively into...
Página 100 - Condense by a common still-tub, 1 gallon of water, from the state of steam, by 100 gallons of water, at the temperature of 50°. The water will be raised 11°. Hence, 1 gallon of water, condensed from steam, raises the temperature of 100 gallons of cold water...
Página ii - ... same that would be obtained by arithmetical computation. Those who are acquainted with the doctrine of ratios, and with the use of logarithms as measures of ratios, will understand the principle on which this scale is founded, and will not need to be told that all the divisions are logometric, and consequently that the mechanical addition and subtraction of ratios here performed by juxta-position, corresponds in effect to the multiplication and division of the numbers by which those ratios are...
Página ii - With regard to the method of laying down the divisions of this scale, those who are accustomed to the use of other sliding rules, and are practically acquainted with their properties, will recognise upon the slider itself, the common Gunter's line of numbers, (as it is called) and will be satisfied, that the results which it gives are the same that would be obtained by arithmetical computation. Those who are acquainted with the doctrine of ratios, and with the use of logarithms as measures of ratios,...
Página xiii - ... forceps, appertaining to each of the tin masses, may be seen on either side of the interstice ; and likewise a wire for ignition held between them. The application of the rope, pulley, and weights, is obvious. The swivel at S permits the frame to be swung round and lowered into water in the vessel a, to wash off the acid, which, after immersion in the other vessel, might continue to act on the sheets, encrusting them with oxide. Between pp there is a wooden partition which is not necessary, though...
Página 187 - So strong is the attraction of the basis of potash for oxygen, and so great the energy of its action upon water, that it discovers and decomposes the small quantities of water contained in alcohol and ether, even when they are carefully purified.