alkali

noun

1. 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

1. 碱
   An alkali is a substance with a pH value of more than 7. Alkalis form chemical salts when they are combined with acids.

1. When alkali is added to such compounds a series of proton dissociations occurs.
   当碱加到这类化合物中，将发生一系列质子离解作用。
2. Water, acrylonitrile and the galactomannan gum are added to a reactor with an alkali metal hydroxide.
   水、丙烯腈和半乳甘露聚糖胶，同碱金属氢氧化物在一起，加入到反应器中。
3. Oat bran protein concentrate was prepared through alkali extraction and acid precipitation.
   采用碱提酸沉法制备了燕麦麸浓缩蛋白。
4. The technology of extracting dietary fiber from orange peel by alkali solution is studied.
   对碱液浸提法提取桔皮膳食纤维的工艺进行了研究。
5. The mechanisms for surfactant and alkali to affect polymer molecule structures are analyzed by laboratory experiments and theory inference.
   通过室内实验和理论分析，就碱和表面活性剂对聚合物分子形态的影响及其作用机理进行了分析。
6. Limitedly resistant to strong acid, strong alkali, strong oxidizing solution and strong solvent.
   但对强酸、强碱、强氧化液和强溶剂忍耐度有限。
7. The alkali concentration or alkaline quality of an alkali-containing substance.
   碱度，碱性含碱物质中碱的浓度或碱的特性常用浓缩脱水有间歇浓缩脱水和连续浓缩脱水。
8. 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。
9. 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。
10. 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。
11. Bronopol was synthesized from nitromethane and formaldehyde by hydroxyalkylation and bromination in the presence of alkali.
    以硝基甲烷和甲醛为原料，在碱性条件下经烷羟基化和溴化两步反应合成了溴硝醇。
12. The influences of alkali, polymer, and temperature on adsorption isotherms are also discussed.
    同时，探讨了碱、聚合物、温度对吸附特征的影响。
13. Properties: red powder, good heat resistance, good alkali resistance and penetration-proof.
    性能简介：红色粉末，具有良好的耐热性，耐碱性和耐渗化性。
14. 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。
15. This lectin is stable to heat and acid, but not to alkali.
    此凝集素对热及酸较稳定，对碱略差。
16. 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。
17. And, in fact, this is the case for all the alkali metals.
    事实上，所有的碱金属都有这样的性质。
18. During saponification, an alkali base such as sodium hydroxide reacts with a fat.
    在皂化反应过程中，碱或者是氢氧化钠和油脂发生反应。
19. 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。
20. The FTIR and chemical analyses indicated lowering of hemi-cellulose content by alkali treatment of the fibers.
    FTIR光谱分析和化学分析结果表明，经碱处理的纤维中半纤维素含量降低；
21. The different method and technology for preparation of alkali from Glauber's salt at home and abroad are reviewed.
    综述了国内外以芒硝为原料制备纯碱、烧碱的各种方法及工艺，并对它们的优、缺点进行了评述。
22. This article presents a new ultrasonic biodiesel production technology and compares it with the liquid alkali catalysis technology.
    介绍了新兴的超声波制取生物柴油工艺技术，并与液体碱催化技术进行了比较。
23. Alkali slag cement in which waterglass was chosen as an activator was studied.
    本文研究了使用水玻璃作激发剂的碱矿渣水泥。
24. This experiment offered a basis for the application of membrane electrodialysis sodium alkali for desulfurization.
    该实验为膜电解钠碱法脱硫的应用提供了依据。
25. The relationship between ion solvation and selectivity of PVC membranes for alkali metal ions has also been studied.
    研究了溶剂化作用同PVC膜对金属离子选择性的关系。
26. 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。
27. Alkali: A soluble matter that forms hydroxyl ions in solution. e.g. NaOH or KOH.
    碱：在溶液中可形成氢氧根离子的可溶性物质。例如氢氧化钠或氢氧化钾。
28. 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。
29. 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。
30. 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。

noun

1. any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
   1. bases include oxides and hydroxides of metals and ammonia

   Synonym:    base

2. a mixture of soluble salts found in arid soils and some bodies of water