The chemical pocket-book, or Memoranda chemica : arranged in a compendium of chemistry : with tables of attractions, &c. Calculated as well for the occasional reference of the professional student, as to supply others with a general knowledge of chemistry / by James Parkinson ; with the latest discoveries ; from the London second edition of 1801 ; to which is added an appendix, containing the principal objections to the antiphlogistic system of chemistry / by James Woodhouse, M.D. ... ; embellished with copperplates.

  • Parkinson, James, 1755-1824.
Date:
1802
Catalogue details

Licence: Public Domain Mark

Credit: The chemical pocket-book, or Memoranda chemica : arranged in a compendium of chemistry : with tables of attractions, &c. Calculated as well for the occasional reference of the professional student, as to supply others with a general knowledge of chemistry / by James Parkinson ; with the latest discoveries ; from the London second edition of 1801 ; to which is added an appendix, containing the principal objections to the antiphlogistic system of chemistry / by James Woodhouse, M.D. ... ; embellished with copperplates. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    Dr. G. Pearfon defcribes fire as confiding of caloric and light; andconfiders light, not as a diftinct fpecies of mat- ter, but as a ftate of caloric, which is manifested by its producing the fenfation termed <vi/ion. Phil. Journal) and Phil. Tranf. 1797. Count Rumford concludes from his experiments, that the vifible changes produced in bodies by the action of the fun's rays, are effected, not by any chemical combination of the ■matter of light with fuch bodies, but merely by the heat which is generated, or excited, by the light that is abforbed by them. EJfays on Heat. OF OXYGEN, OXYGEN, or the acidifying principle, is found only i« its combinations, which from its almoft univerfal agency in the operations of nature, are neceflarily numerous. It is abfolutely neceflary to refpiration and combuftion, and Jikewife poffefles exclusively the property, from which its name is derived, of forming acids by combination with certain fubftances, which are therefore termed acidifiable bafes. Acids, the refult of this union, are chara&erifed by a four tafte, and by changing vegetables red. By their union with other fubftances hereafter mentioned, they form peculiar salts. The general characters of thefe are iapidity, ready folubility in water and incombuftibility. Acids may exift in three ftates of combination with oxy- gen—1 ft, When their bafes are not faturated with oxygen, which is designated, according to the prefent nomenclature, by the termination ous~ zdly, When completely faturated with oxygen, which is pointed out by the termination ic ; and 3dly, When pofleffing an excefs of oxygen, when the fub fiance is faid to be oxygenated. When metals and various other fubftances are expofed to its action, the acidifying procefs fometimes takes place unaccompanied by the ulual marks of combuftion, and in fuch a degree as not to produce obvious acidity. The fub- ftances are then called OXIDES, to denote their being in a ftate approaching to acidity, and the procefs is termed OXIDATION. Oxygen Gas is the refult of the combination of oxygen with caloric. It exifts in atmofpheric air, in the proportiea