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For synthetic uses, this is generally an undesirable, but spontaneous and favored side-reaction of mixed aldol condensation, and special precautions are needed to prevent it. In many cases, ...

Nitric oxide (NO) supplements are used to improve heart health, decrease high blood pressure in pregnancy, treat erectile dysfunction, and improve athletic performance. In the United States, the Food ...

One at-home treatment option for eczema is zinc oxide. Zinc is known for its ability to soothe and prevent skin irritation, meaning it may help some people with skin conditions such as eczema. Zinc is ...

By introducing rare earth single atoms into manganese oxide (MnO 2), the group successfully modulated oxygen electronic states, leading to unprecedented improvements in OER performance.

有时β-羟基醛酮会脱水得到α，β-不饱和羰基化合物。将烯醇盐加成到醛（ aldehyde）上得到醇（ alcohol），因此此反应被称为 Aldol缩合反应。 原始的aldol反应是用Brönsted酸碱催化，但是此方法会有一系列副反应生成，如自身缩合，多聚缩合，脱水后产物接着进行 ...

When sodium is cut or scratched, its freshly exposed shiny surface rapidly turns dull as a thin layer of sodium oxide forms: Other metals may oxidise more slowly. Gold and other very unreactive ...

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