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汉语拼音：qīng yǎng huà wù

通常指金属元素与氢氧根结合而生成的化合物。一般金属元素的氢氧化物显碱性，如氢氧化钠(naoh)；非金属元素的氢氧化物显酸性，例如硼酸［h3bo3，不写作゜(oh)3］；此外，有一些元素的氢氧化物显两性，如氢氧化锌［既可写成zn(oh)2，又可写成h2zno2］等。

• In addition to carbonates and metal hydroxides, these products are also claimed to react with the surface of talc and of cellulosic fillers.

  除可用于碳酸盐和金属氢氧化物外，据称这些产品也能与滑石粉和纤维素填料的表面反应。

• The acid reacts with most metals, to produce hydrogen and the metal's chloride, and with oxides, hydroxides, and many salts.

  盐酸与大多数金属反应产生氢和金属的氯化物，还能与氧化物、氢氧化物及许多盐起反应。

• Water, acrylonitrile and the galactomannan gum are added to a reactor with an alkali metal hydroxide.

  水、丙烯晴和半乳甘露聚糖胶，同碱金属氢氧化物在一起，加入到反应器中。

• Treated with methanol and potassium hydroxide, also known as lye, the vegetable oil molecules break down.

  植物油分子经过甲醇和钾的氢氧化物、也被称作灰汁的处理后就被分解。

• An explanation for some of the disappearances focuses on the presence of vast fields of methane hydrates on the continental shelves.

  对于某些失踪事件的原因，有种解释集中认为是大陆架上广阔地域存在着沼气氢氧化物。

• The calcium hydroxide is easily transformed to calcium carbonate, this results in the early strength of the red mud heap.

  赤泥中钙的氢氧化物最容易转化为碳酸钙，此作用可使赤泥获得早期强度。

• However hydroxyl has no effect on carbon dioxide.

  但是，氢氧化物却对二氧化碳毫无影响。

• Alkali: Inorganic compound, any soluble hydroxide (-OH) of the alkali metals: lithium, sodium, Potassium, rubidium, and cesium.

  无机化合物，任何碱金属，即锂、钠、钾、铷、铯的可溶氢氧化物。

• those of the alkaline earth metals (calcium, barium, and strontium), also soluble strong bases, are less stable.

  碱土金属（钙、钡和锶）的氢氧化物也是可溶性的强碱，但稳定性较差。