Chemical recreations: a series of amusing ... experiments ... To which are prefixed, first lines of chemistry, etc / [Anon].

  • Griffin, John Joseph, 1802-1877
Date:
1824
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Licence: Public Domain Mark

Credit: Chemical recreations: a series of amusing ... experiments ... To which are prefixed, first lines of chemistry, etc / [Anon]. Source: Wellcome Collection.

    46/264 (page 24)
    substance, possessed of this power, to which the attention» of chemists is chiefly directed, is caloric. | 82. The appellation of caloric has been given, by mo-- dern chemists, to that which produces the well-known sen— sation called heat. 83. Caloric penetrates all bodies ; separating their par-- ticles from each other, and thus increasing their bulk.. Solids, by an increase of heat, become fluids, and fluids, , gases. Thus ice is converted, by an accession of caloric, , into water, and by a still farther accession, it becomes: steam. . ky , 84. The subject of heat is pursued at considerable length» in section the first of the experimental part of this work.. ‘The student should make this division of thé science of! Chemistry an early object of his attention ; ‘as, ‘unless he: comprehend the manner in which caloric acts, the ration:. ale of scarcely a single chemical process will be intelli-- gible to him, |, 85. ComBusTION—+CoMBINATION. Combustion is con:- sidered as the general result of intense chemical action: , When oxygen and chlorine unite with the simple combus:- tibles, compounds possessed of most remarkable properties : are formed: the combinations take place with astonish-- ing, energy, and with the evolutions of light and heat. «| 86. In all common cases, combustion is the process of f the solution of a body in oxygen ;‘as' when sulphur or: phosphorus are burnt in it, or when it forms water, by, combining with hydrogen, | f 2th MOTD 5 US 87, The union of considerable quantities of oxygen and | chlorine with combustible bodies, generally produce acids ; ; thus sulphuric, phosphoric, and boracic acids, are formed | y the union of considerable quantities of oxygen with | portions of sulphur, phosphorus, and boronand ratiriatie : ‘acid gas is formed by the union of chlorine and hydrogen, See the article acips, (97.) 88. When these solvent substances, oxygen and chlorine, , unite with combustible bodies in smailer quantities, ‘they produce compounds, not acid, and, in a greater or less de- gree, soluble in water. A vast number of compounds are thus formed by oxygen : the earths, the fixed alkalies, and