查询词典 sodium hydroxide

Zirconium 3-nitrophthalate Zr(3-NO2-PHT2·2H20 was synthesized using 3-nitrophthalic acid, sodium hydroxide, and zirconyl nitrate as raw materials.

用3一硝基邻苯二甲酸、氢氧化钠和硝酸氧锆为原料，制备了3。

The result indicated that manganese chloride,acetylacetone,sodium hydroxide,were grinded for 15 mins at room temperature with the molar ratio of 1∶4∶1.8,the yield of manganese ac...

结果表明：氯化锰、乙酰丙酮、固体NaOH按1∶4∶1.8的摩尔比，在室温下研磨15 min所得产率最高，产率为68%，比传统液相法的产率(25%)高出43%。

Influences of factors, such as the dose of TPP and water, alkalization time and way of adding sodium hydroxide, on the degree of substitution, uniformity of substitution groups distribution and the viscosity were studied..

综合水 溶液粘度和取代度及其分布两因素，得到优化的工艺配方：在20℃下，加入8wt%亚磷酸三苯酯量，氢氧化钠和纤维素的摩尔比为3。

In the aqueous solution of sodium hydroxide,benzoylformic acid can coordinate with 2,4-dinitrophenylhydrazine to form a complex which has maximum absorption at 458 nm.Thus the content of benzoylformic acid can be quantitatively determined.

在氢氧化钠溶液中，苯乙酮酸和2，4-二硝基苯肼形成一种红棕色的溶液，该溶液在458 nm处有最大吸收，据此可以快速分析混合物中苯乙酮酸的含量。

Methods:total alkaloids of radix Sophora lavescens were extracted by acidified water,then adjusted to neutral by sodium hydroxide solution, dissolved with buffer solution,then were mixed with 0.025％ of bromothymol solution and chloroform,and then the mixture was shaken,standing and demixed,the absorbability of chloroform layer was detected at the wavelength of 413nm.

将苦参的酸水提取液用氢氧化钠溶液调节至中性后，依次加入pH=7.6缓冲溶液，溴代麝香草酚蓝指示液、氯仿混合振摇，静置分层，于413 nm波长处测定氯仿层吸收度。

Experiment showed that the hydrolysis product of chloroisopentene in sodium hydroxide solution was mixture of isopentenol and methyl butenol , which indicated that displacement reaction of chloroisopentene was accompanied by isomerization reaction of carbonium ion.

在以氢氧化钠水溶液进行氯代异戊烯水解时发现，水解产物为异戊烯醇和甲基丁烯醇的混合物，这说明氯代异戊烯在进行取代反应的同时，伴有正碳离子的异构化反应，由此开发了一条全新的由氯代异戊烯生产甲基丁烯醇和异戊烯醇的新的工艺路线。

Purified water, VP/VA copolymer, vegetable glycerin, hydrolyzed wheat protein, biotin, panthenol, niacin, extracts of camellia sinensis and serenoa serrulata, certified organic extracts of salvia officinalis, aloe barbadensis leaf, lavandula angustifolia, melissa officinalis, calendula officinalis and chamomilla recutita, sodium hydroxide, carbomer, phenoxyethanol.

纯水、VP / VA共聚物、蔬菜甘油、水解小麦蛋白、素、泛醇、烟酸、提取物的茶树和serenoa serrulata，经认证的有机液(鼠尾草、琴柱草酝酿索芦荟叶片，)小甜甜沙枣淡紫色，酝酿和chamomilla金盏花酝酿recutita(matricaria、氢氧化钠、萃取。所有发质都适合。

Naphthoxyacetic acid was synthesized from 2-naphthol , sodium hydroxide and chloroacetic acid under the microwave radiation.

在微波辐射下，以2-萘酚、氢氧化钠和氯乙酸为原料合成了2-萘氧乙酸。

Aqua, Sorbitol, PPG-1 PEG-9 Lauryl glycol ether, Hydrolyzed elastin, Hydrolyzed wheat gluten, Hydrolyzed collagen, Hydrolyzed glycosamino-glycans, Humulus lupulus, Propylene glycol, Triethanolamine, Sodium hydroxide, Carbomer, Maris limus extract, Ostrea extract, Imidazolidinyl urea, Parfum, Benzyl salicylate, Coumarin, Alpha isomethyl ionone, Hexyl cinnamal, Buthylphenylmethylpropionate, Linalol, Methylisothiazolinone, Methylchloroisothiazolinone.

水，山梨醇， PPG 公司- 1聚乙二醇- 9十二烷基醇醚，水解弹性蛋白，水解小麦面筋蛋白，水解胶原蛋白水解粘多糖，多聚糖，啤酒花提取物花，丙二醇，三乙醇胺，氢氧化钠，卡波姆，马里斯提取物，牡蛎提取物，咪唑烷基脲，香水，水杨酸苄酯，香豆素，阿尔法 l 紫罗兰酮，己基肉桂醛，丁苯基甲基丙醛，芳樟醇，甲基异噻唑啉酮，甲基氯异塞唑晽酮。

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%。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。