alkali
英 [ˈælkəlaɪ]
美 [ˈælkəlaɪ]
n. 碱
复数：alkalis
BNC.13261 / COCA.28494
牛津词典
noun
- 碱
a chemical substance that reacts with acids to form a salt and gives a solution with a pH of more than seven when it is dissolved in water
柯林斯词典
- 碱
Analkaliis a substance with a pH value of more than 7. Alkalis form chemical salts when they are combined with acids.
英英释义
noun
- any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
- bases include oxides and hydroxides of metals and ammonia
- a mixture of soluble salts found in arid soils and some bodies of water
双语例句
- Viscose manufacturing process involves the reaction of cellulose with sodium hydroxide to form an alkali cellulose.
粘胶的生产过程包括纤维素与氢氧化钠反应形成碱纤维素的过程。 - It was proved that alkali wastewater can be treated by microelectrolysis.
这为微电解法在碱性废水预处理中的应用奠定了基础。 - Cesium and organic alkali will occur with other similar reactions, but it's quite lively.
铯和有机物也会发生同其他碱金属相类似的反应，但它比较活泼。 - The article introduces the application of fixed ammonia alkali additive decomposition equipment on coking wastewater.
文章着重介绍了固定氨加碱分解装置在焦化废水中的应用。 - The best processing condition of micro porous fiber in acid-processing and alkali weight reduction processing had been studied.
研究了微孔纤维成孔的最佳酸处理工艺条件和微孔纤维碱减量处理工艺。 - A new process for recovering valuable organic acids from waste alkali liquor in cyclohexane oxidation is introduced.
介绍了一种从环己烷氧化废碱液中回收高价值有机酸的新方法。 - The enrichment and recovery of tantalum and niobium through acid leaching and sodium alkali fusing from tungsten residue is studied.
研究了用酸浸与钠碱熔融法从钨渣中富集和回收钽铌。 - The solution obtained by carbonation decomposition was causticized to recycle the alkali and carbon dioxide.
碳酸化分解后所得溶液经苛化工艺实现碱和二氧化碳的循环利用。 - The free alkali metals react immediately with water to liberate hydrogen.
游离的碱金属直接和水中作用，放出氢气。 - The morphology of the untreated and alkali treated fibers was studied by scanning electron microscopic method.
用电镜扫描的方法研究了经碱处理和未处理的纤维形态。