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Igneous particles

With the Tschirnhaus burning glass, Homberg embarked on a series of experiments to unravel the nature of the sulphur principle. He expected that the new instrument would reveal the intimate composition of bodies at the corpuscular level, beyond the ordinary chemical analysis of distillation. He was already familiar with Du Clos s experiment with the old burning mirror. It proved to him in an incontestable manner that the matter of fire or igneous particles entered into the composition of bodies and augmented their weight. He thus attributed... [Pg.90]

Shaw in Boerhaave. (1741). A. Neii Method. loi. The claim of Boyle and Homberg is based upon the opinion that gold is made of mercury and fixing igneous particles or sulphur. If you take the igneous particles away, you are left with liquid mercury. [Pg.154]

Among his numerous chemical investigations Boyle noticed that various metals, among them tin, lead, and copper, underwent an increase in weight when heated in air. He ascribed this result erroneously to the absorption by the metal of heat, which he viewed as ponderable, that is, as consisting of material igneous particles possessing... [Pg.138]

Chardenon identified phlogiston with fire and says his idea is founded on the common notion of the specific lightness of fire in air." He concluded that (i) the increase in weight is due neither to the fixation of igneous particles nor to the accession of corpuscles from the atmosphere (Beraut s theory) (ii) the principal cause both of the increase in weight of calcined metals and the... [Pg.314]

Boyle s experimental work in chemistry did not consist of a string of haphazard operations, like that of his predecessors. He worked to a plan, directed towards the solution of a definite problem. He did not, of course, always arrive at the correct interpretation of his observations. Notably, he attributed the increase of weight in his experiments on the calcination (heating in air) of metals to their absorption of igneous particles, as mentioned above so that he viewed the resulting calx (oxide) as a compound of the metal with fire. Here, he had fastened his attention upon a problem of the very first importance in chemistry, namely, the chemical nature of combustion, or burning. [Pg.140]


See other pages where Igneous particles is mentioned: [Pg.14]    [Pg.414]    [Pg.513]    [Pg.59]    [Pg.91]    [Pg.116]    [Pg.154]    [Pg.145]    [Pg.52]    [Pg.140]    [Pg.168]    [Pg.170]    [Pg.251]    [Pg.380]    [Pg.29]    [Pg.741]    [Pg.168]    [Pg.279]    [Pg.34]    [Pg.607]   
See also in sourсe #XX -- [ Pg.114 , Pg.140 ]




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