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| Oil of brick ： ウィキペディア英語版 |
Oil of brick
Oil of brick, called by apothecaries Oleum de Lateribus and by alchemists Oil of Philosophers, was an empyreumatic oil obtained by subjecting a brick soaked in oil, such as olive oil, to distillation at a high temperature.
==Manufacture==
The process initially started with pieces of brick, which were heated red hot in live coals, and extinguished in an earth half-saturated with olive oil. Being then separated and pounded grossly, the brick absorbs the oil. It was then put in a retort, and placed in a reverberatory furnace, where the oil was drawn out by fire.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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