The delay attendant on this method of purification is avoided by treating the crude oil with 1 to 2% of a somewhat strong sulphuric acid, which chars and carries down the bulk of the impurities. [Please select]
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They both are chars and belong to the genus =Salvelinus=--not to the =Salmo=. [Please select]
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He was with a party of Labour delegates who had been met by two officers and carried off in chars-a-bancs. [Please select]
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The fuel is charcoal, which the smelter makes by burning wood in a heap more or less covered with earth, in such a way that the wood chars rather than burns away. [Please select]
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