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Excerpt from Year-Book of Pharmacy: Comprising Abstracts of Papers Relating to Pharmacy, Materia Medica, and Chemistry, Contributed to British and Foreign Journals, From July 1, 1871, to June 30, 1872, With the Transactions of the British Pharmaceutical Conference
Oleic acid can now be Obtained in commerce in considerable quantities, and at a very moderate price. -it is possible, therefore, that it may find other applications in pharmacy, more especially in the preparation of a pure potash soap, which would advantageously replace the present Sapo Mollis Of the Pharmacopoeia.
M. G. Tissandier has pointed out a reaction by which pure anhydrous ferrous oxide in a stable condition may be obtained, which may possibly prove useful in pharmacy: It'is known that when carbonic acid gas is passed over red-hot iron, it is reduced to carbonic oxide. M. Tissandier shows that the oxide Of iron formed is the pure protoxide. Coils of clean iron wire are heated to redness in a porcelain tube through which pure dry carbonic acid gas is passing. When the wire is afterwards taken out, scales Of protoxide may be removed from its surface, in the form of a black, brilliant, and crystalline substance.
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