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氢氧化钠

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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。

The addition of small amounts of H2O and NaOH to the reaction system improved the catalytic activity but decreased the selectivity of crotyl alchol.

结果表明,反应体系中水和氢氧化钠的引入,可提高催化活性,但降低了选择性。

Synthesis of Antidote of N-Dichloroacetyl-2-methyl-1-oxa-4-aza-spiro-4.4-nonane BI Hong-mei, ZHANG Jin-yan, LIANG Ying, SHEN Yong (College of Arts and Sciences Heilongjiang August First Reclamation University, Daqing 163319, Heilongjiang, China) Abstract: N-Dichloroacetyl-2-methyl-1-oxa-4-aza-spiro-4.4-nonane was synthesized by one pot method with isopropanolamine, cyclopentanone and dichloroacetyl chloride. The optimum reaction conditions obtained are as follows:the proportion in moles of the above materials is 1∶1∶1.2, reaction solvent is toluene, reaction temperature is -15 to -10 ℃,reaction time is 3 h, under the optimum condition, the yield of the compound is 50.0%.

除草剂解毒剂N-二氯乙酰基-2-甲基-1-氧杂-4-氮杂-螺[4.4]壬烷的合成毕洪梅,张金艳,梁英,沈勇(黑龙江八一农垦大学文理学院,黑龙江大庆 163319)摘要:以33%的氢氧化钠水溶液为缚酸剂,异丙醇胺、环戊酮和二氯乙酰氯为原料,采用&一锅法&合成了N-二氯乙酰基-2-甲基-1-氧杂-4-氮杂-螺[4.4]壬烷,采用正交实验法得到最佳反应条件:反应原料摩尔比为1∶1∶1.2,苯作溶剂,反应的温度为-15 ℃~-10 ℃,搅拌时间为3 h,产率达到50.0%。

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 third step is the refinement of the fat. Make use of phosphoric acid to degum, sodium hydroyide to deoxidisate, acitive floridin to decolor and rotary evaporator to deodorizate.

三、油脂的精炼,利用磷酸脱胶、氢氧化钠脱酸、活性白土脱色、旋转蒸发真空处理脱腥,得到精炼鱿鱼油。

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。

Effects of different anti-ions on dispersivity indicated that the best dispersivity was gained when diethanolamine was used.

使用氢氧化钠对聚丙烯酸不同程度的中和,通过红外光谱分析了羧基的中和程度,考察了羧基中和程度对分散剂性能的影响。

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。

Thiol groups were good to be used in functionalizing gold nanoparticles, and ester bond formation and breakage played the major role in this research. Thioctic acid and 11-mercapto-1-undecanol were used to functionalize the gold nanoparticles and form ester bond by using the carboxylic acid group on thioctic acid and the hydroxyl group on 11-mercapto-1-undecanol. Concentrated sulfuric acid was used to be the catalyst in this reaction, and sodium hydroxide was added for the proceeding of the reverse reaction.

硫醇官能基在金奈米粒子的修饰有很好的效果,利用带有硫醇官能基之tioctic acid 与11-mercapto-1-undecanol (11-MUDO)分子修饰在金奈米粒子上,并使TA上之羧基和11-MUDO上之羟基脱水生成酯化键,浓硫酸则是反应中的催化剂,而氢氧化钠则可促使系统进行逆反应。

Purine derivatives was confected tosolution of 3*10~(-5) g/mL by sodium hydroxide solution(1 weight% in water), and thenmeasured the diameter of fungistatic circle.

将实验所得嘌呤化合物溶解于质量浓度为1%的氢氧化钠水溶液中,通过测量抑菌圈直径的大小来测试了所有所得嘌呤衍生物的抑菌活性。

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推荐网络例句

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时,滚道或滚动元件褪色是很常见的特征。

The lawyer's case blew up because he had no proof.

律师的辩护失败,因为他没有证据。