Napier, James, 1810-1884, Fesquet, A. A · Philadelphia : H. Carey Baird · leaf 54
ut other and more economical means are now adopted for its preparation, as follows: An iron bottle is prepared, with an iron tube fitted into the mouth air-tight, forming a retort; into this a quantity of black oxide of manganese is put, and the bottle placed with its contents, into a good fire,… … ually displaces the water. In ex- planation of what is taking place within the retort-bottle in the fire it may be stated, that the black oxide of manganese is com- posed of Mn02; the high heat drives off, or sets at liberty, a portion of the oxygen, and the manganese is converted into a lower…
Dyes and dyeing · Coal-tar colors
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