A History of Chemistry: From the Earliest Times Till the Present DayJ. & A. Churchill, 1913 - 543 strani |
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action affinity alchemical alchemists alcohol alkali alpha rays ammonia ancient antimony Arabic atomic weight Berthollet Berzelius bodies burned calcined called calx Campbell Brown century CHAPTER chemical chemical affinity chemistry chemists chlorine colour combine combustion composition compounds constituents contain copper Davy discovered discovery distillation doctrine Dumas earth electricity elements experiments facts fermentation fire formulæ gases Gay-Lussac Geber Gerhardt gold Greek heat Helmont hydrochloric hydrochloric acid hydrogen idea important inflammable air investigation isomerism laboratory Lavoisier lead Liebig manuscripts matter medicine mercury metals method mineral mixture molecules nature nitric nitrogen observed obtained oxide oxygen Paracelsus Paris particles period philosopher's stone philosophers phlogiston phlogiston theory Phlogistonists phosphorus potassium prepared principle produced properties proportion quantity radicle radium rays recognised sal ammoniac salts Scheele silver sodium solution Stahl studied substances sulphate sulphide sulphuric acid symbols Syriac term theory tion transmutation treatise valency vitriol writings Zosimus
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Stran 295 - ... 6. We must expect the discovery of many yet unknown elements, for example, elements analogous to aluminium and silicon, whose atomic weight would be between 65 and 75. " 7. The atomic weight of an element may sometimes be amended by a knowledge of those of the contiguous elements. Thus, the atomic weight of tellurium must lie between 123 and 126, and cannot be 128. " 8. Certain. characteristic properties of the elements can be foretold from their atomic weights.
Stran 271 - That for a constant quantity of electricity, whatever the decomposing conductor may be, whether water, saline solutions, acids, fused bodies, &c., the amount of electro-chemical action is also a constant quantity, ie, would always be equivalent to a standard chemical effect founded upon ordinary chemical affinity.
Stran 272 - Godhead ; and I have never seen anything incompatible between those things of man which can be known by the spirit of man which is within him, and those higher things concerning his future which he cannot know by that spirit.
Stran 99 - Soul. To Discover the Immortality of Reasonable Souls. With two Discourses: Of the Powder of Sympathy, and Of the Vegetation of Plants...
Stran 224 - By the experiments with the globe it appeared, that when inflammable and common air are exploded in a proper proportion, almost all the inflammable air, and near one-fifth of the common air, lose their elasticity, and are condensed into dew.
Stran xvi - Fund is under the direction of the Royal College of Physicians of London and the Royal College of Surgeons of England and is governed by representatives of many medical and scientific institutions.
Stran 231 - About six years previously, Priestley, in his then celebrated work on different kinds of air,11 had written : "Nothing however would be easier than to augment the force of fire to a prodigious degree by blowing it with dephlogisticated air, instead of common air.
Stran 328 - The last of this series of dreams led to his famous discovery, which has been called "the most brilliant piece of prediction to be found in the whole range of organic chemistry.
Stran 110 - The basis of this phraseology is the distinction of metals into more or less perfect • gold being the most perfect, as being the most valuable, most beautiful, most pure, most durable ; silver the next ; and so on. The "Search of Perfection" was, therefore, the attempt to convert other metals into gold ; and doctrines were adopted which represented the metals as all compounded of the same elements, so that this was theoretically possible. But the mystical trains of association were pursued much...
Stran 66 - What is below is like that which is above, and what is above is similar to that which is below to accomplish the wonders of one thing.