查询词典 hydroxide

The invention relates to a way to prepare nickel, manganum and cobalt hydroxide. The method includes making the mixed solution a coprecipitate with mixed solution B in base solution C. The mixed solution A contains nickel salt, manganese salt and cobalt salt, the mixed solution B is a strong base solution, the base solution C is aqueous ammonia solution. The solution A also contains ammonium salt while solution B also contains aqueous ammonia; besides, after being mixed, the molarity of ammonia in solution A and solution B is the same with that in solution C.

一种镍锰钴氢氧化物沉淀的制备方法，该方法包括将混合液A和混合液B在底液C中进行共沉淀反应，所述混合液A中含有镍盐、锰盐、钴盐，所述混合液B为强碱溶液，所述底液C为氨水溶液，其中，所述混合液A中还含有铵盐，混合液B中还含有氨水，并且参于等当量反应的混合液A中的铵盐与混合液B中的氨水在混合液A和混合液B混合后氨的摩尔浓度与底液C中氨的摩尔浓度相等。

The basic functionalized ionic liquid, 1 -butyl-3-methylimidazolium hydroxide OH, was prepared and used to catalyze the Knoevenagel condensation of aromatic aldehydes with malononitrile or ethyl cyanoacetate.

合成了碱性功能化离子液体氢氧化1-丁基－3-甲基咪唑，研究了将其作为催化剂催化芳香醛和丙二氰、氰基乙酸乙酯的Knoevenagel缩合反应。

The basic functionalized ionic liquid, 1-butyl-3-methylimidazolium hydroxide, was prepared and used to catalyze the Knoevenagel condensation of aromatic aldehydes with malononitrile or ethyl cyanoacetate.

合成了碱性功能化离子液体氢氧化1-丁基-3-甲基咪唑，研究了将其作为催化剂催化芳香醛和丙二氰、氰基乙酸乙酯的Knoevenagel缩合反应。

Using the syringe, inject 0.30 mL of freshly prepared cyclopentadiene into the vial containing the potassium hydroxide.

用一个注射器，把0.30Ml新鲜制得的环茂二烯注入一个内有氢氧化钾的样品瓶中。。

Besides, it makes discussions on the factors that affect the deacetylate degree of chitosan, and obtains the optimal technical conditions as follows: the density of sodium hydroxide 35%, the reaction temperature 90℃, the reaction time 3 h, and the transfer catalyst dosage 5%.

讨论了影响壳聚糖脱乙酰度的因素，确定了最佳工艺条件，氢氧化钠质量分数为35%；反应温度90℃；反应时间3h；相转移催化剂质量分数为5%。

The solution is Cap.59 out of monlchamus, emulsibility deink de-fluxing COTS use gasoline, 5% aqueous solution of sodium hydroxide and pumice mixed abrosive, at the same time on the roll is also the processing to be done.

处置方法是铲掉乳化不朱，不兵脱不朱胶辊用汽油洗不污，用5%的氢氧化钠火溶液与浮石粉搀和打磨，同时差金属辊也给怠工相答办理。

Combination reaction of the sodium aluminate solution produced by upstream desiliconization process, and aluminium hydroxide with certain quality index is produced, at the same time qualified mother solution is supplied in the ACCDP.

末槽分解率是反映碳分过程工况的重要工艺指标，但是分解率不能在线检测，只能通过离线化验，形成大滞后、非线性特性，严重影响碳分过程的优化运行。

Dibenzyl oxalate was synthesized from oxalic acid, potassium hydroxide and benzyl bromide under microwave irradiation using tetrabutylammonium bromide as phase-transfer catalyst and polyethylene glycol-200 as solvent.

在微波辐射条件下，以草酸、氢氧化钾和溴化苄为原料，四丁基溴化铵为相转移催化剂，聚乙二醇200为溶剂合成了草酸二苄酯，并通过熔点和红外光谱对产物的结构进行了表征。

Spiral Spirobifluorene acetylated is oxidated by m-chloroperoxybenzoic acid and hydrolyzed by sodium hydroxide ,obtaining 2,2 '- dihydroxy -9,9'- spiral Spirobifluorene .Through nitrification,Reduced by hydrazine hydrate, we may get the 2,2 '- diamino -9,9'- spiral Spirobifluorene which are characterizated by IR, 1H-NMR !

L-酒石酸和乙醇酯化得到酒石酸二乙酯，将保护羧基保护起来，然后用碘甲烷在2，3-位上两个甲基，得到2，3-二甲氧基-酒石酸二乙酯，再用氢氧化钠将其水解，得到2，3-二甲氧基-酒石酸，用五氯化磷将羧基酰化，得到2，3-二甲氧基- 1，4-丁二酰氯，经过与二环己胺反应，得到拆分配体2，3-二甲氧基–N，N，N'，N'-四环己丁二酰胺。

Aromatic dinitro compounds were reduced irrespective of the presence or absence of β-CD in sodium hydroxide solution, which revealed particularity of aromatic dinitro compounds.These reactions have advantages below over past research results of aromatic nitro compounds:(1) The synthetic method using water as the reaction medium may

这些反应与过去人们对硝基化合物反应的研究结果相比，具有以下优点：(1)反应在水介质中进行，避免使用辅助有机溶剂和金属催化剂，是环境友好的清洁反应，比较符合绿色化学的发展要求；(2)反应中所用的β-环糊精无毒，价廉，易得

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。