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Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴酸,硫酸的催化下,生产溴十二烷。

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from now on, from scratch, from side to side, from start to finish, from the outset, from the start, from then on, from time to time, from top to bottom, from way back,

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3G, 401(K), a,

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