强碱

Calcium hydroxide is an alkali almost not hard dissolved in water .

氢氧化钙是一种几乎不容于谁的难溶性强碱。

At the same dosage, alkaline reduction ability of sodium hydroxide is better than calcium hydroxide.

结果表明，甲醛的强碱还原转化主要取决于碱投加量和反应温度，在同样投加量下，氢氧化钠比氢氧化钙对甲醛还原能力稍强。

The caustic potash as a strong base not only could reduce the needed quantity of NH〓 and cooking time, but also provide potassium into black liquor.

少量钾碱作为强碱不仅能减少氨量、缩短蒸煮时间，而且可为黑液提供钾源。

The study mainly aims at the optima composition and suitable technological conditions of stearoylbenzoyl-methane--one of theβ- diketone compounds prepared from methyl stearate and phenyl ethyl ketone under alkaline catalysts.

主要研究采用硬脂酸甲酯和苯乙酮在强碱类催化剂作用下制备β二酮化合物之一的硬脂酰苯甲酰甲烷的最佳配方和适宜的工艺条件。

The desorption was carried out with 0.5mol/L sodium acetate buffer, the eluate of above 95% purity and of above 30g/L DAC was obtained.

洗脱后的活性炭以含异丙醇的强碱溶液对活性炭浸泡洗涤，再用酸溶液中和冲洗，可恢复其吸附能力。

The EIS of the anodic dissolution process of pure aluminum in an alkaline solution was fitted using an expression of Faradic admittance previously proposed by Cao, based on which the mechanism of the process was proposed.

依据曹楚南提出的法拉第导纳表达式，拟合了纯铝在强碱溶液中的阳极溶解过程的电化学阻抗谱，并据此提出了这一反应进行的机理。

The fluorescence intensity grew and emission wavelength gradually increased between 331nm and 350nm under the condition of strong acid(pH=3.5), strong alkaline(pH=12.1)and high temperature(80 °C), showing that the conformation of lipase protein changed from globularity to unfolding state.

发现游离酶蛋白质在高温(80℃)，强酸(pH=3.5)、强碱(pH=12.1)，变性剂的作用下基本表现为荧光强度增大，最大发射波长在331～350nm之内逐渐增大，说明蛋白质整体构象从球状到了伸展状态。

This indicated that Grignard reagent is a catalyst here.

格氏试剂在这里是作为一个强碱起着催化作用。

Because the carbonyl in its structure is with strongly absorb-electron effect, so it is a kind of non-proton polarity solvent with high boiling point, high flash point and low melting point, use conveniently for many processing operation such as filtration, distillation, solvent extraction, and so on; it is with very low toxicity, so the harm to human body is inappreciable, and reduce the environment pollution; due to its very strong dissolvability, it can dissolve organic matter, inorganic matter, resin, polymer, etc., and activate all kinds of reagent, mix to dissolve the other high boiling point solvents; it is with very good stability, it is stable under the hot strong alkali and acidity condition, it is with water-resistance and light, oxygen stability.

246℃ m.p：—20℃闪点121℃ flash point： 121℃分子式：C6H12N2O molecular formula： C6H12N2O 分子量128.18 molecular weight： 128.18 二、DMPU的化学性质 Chemical character of DMPU 其结构中由于羰基具有强烈的吸电子效应，因而它是一种非质子的极性溶剂，具有高沸点、高闪点、低熔点，在过滤、蒸馏、溶剂萃取等工艺操作中使用方便；毒性极低，对人体危害微不足道，也减少了对环境的污染；由于它具有极强的溶解性，能溶解有机物、无机物、树脂、聚合物等，并对各种试剂具有活化性质，还能与其它高沸点溶剂混溶；具有极好的稳定性，在热的强碱和酸性条件下都很稳定，还具有耐水性及对光、氧的稳定性。

Polypyrrole is a typical conductive polymer and is also the most studied and used one. It has the advantages of convenient synthesis, needlessness of hard acidic and alkali condition, low electro-polymerizing potential, good stability in air, high mechanical strength, low cost, and great electronic transport, photo-electricity and thermoelectricity properties.

聚吡咯是导电聚合物的典型代表，它具有合成方便、不需要强酸强碱环境、电聚合电位低、空气稳定性好、机械耐受性良好、成本较低、导电性、光电性、热电性较好等优点，是化学修饰电极中研究最多和应用最广的。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。