比如说,某些蜂蜜在被稀释时能产生过氧化氢,这一物质具有抗菌的功效,但是曼努卡蜂蜜能产生一种不同的抗菌物质,丙酮醛。
For example, some honeys produce hydrogen peroxide when diluted - that's what gives them antimicrobial properties - but Manuka honey produces a different antimicrobial substance called methylglyoxal.
但是是否任何类似(丙酮和过氧化氢是炸弹的主要成份)的行为都要报告给执法人员,由其对这些行为进行评估呢?
But should any of these activities (acetone and hydrogen peroxide can be components for explosives) be reported to and evaluated by law enforcement officials?
以叔丁基过氧化氢(TBHP)为氧化剂,四丁基溴化铵(TBAB)为相转移催化剂,有效地将乳酸乙酯氧化合成丙酮酸乙酯,产品纯度达98%以上。
Ethyl pyruvate was synthesized from ethyl lactate using TBHP as oxidant and TBAB as phase transfer catalyst, the purity of product was over 98 %.
以丙酮为溶剂,过氧化氢为氧化剂,考察了环己烷氧化制取环己酮的反应。
The reaction was studied, which used acetone as solvent and hydroperoxide as oxidant to produce cyclohexanone.
以丙酮为溶剂,过氧化氢为氧化剂,考察了环己烷氧化制取环己酮的反应。
The reaction was studied, which used acetone as solvent and hydroperoxide as oxidant to produce cyclohexanone.
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