The student's chemical pocket companion / by W. S. Jacobs, M.D.

  • Jacobs, William Stephen, 1770-1843.
Date:
1807
Catalogue details

Licence: Public Domain Mark

Credit: The student's chemical pocket companion / by W. S. Jacobs, M.D. 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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    [ 9] Vegetables when deprived of light, vxhibita pile colour, are inodorous, insipid; and deprived of active qualities. Light has great effects on chemical opera- tions, by disengaging oxygen from various combinations. SULPHUR Is D simple substance of an orange yellow colour, burning with a blue flame, and ex- haling a strong penetrating odour; by friction, it becomes electric. It is found native, or combined with earths and metals; it is also obtained from certain vegetables. Flowers of Sulphur are obtained from crude sulphur by subliming it in close vessels. Sulphur burnt with substances, containing oxygen, forms the sulphuric acid. Sulphur combined with different sub- stances, forms sulphurets; but these com- binations will be mentioned in their respec- tive places.