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The removal of arsenic and antimony from the oxidated solution was investigated in the sodium thioantimonite production by air oxidation, and the approach of enhancing the by-product output of sodium thiosulfate was explored.

研究了空气氧化法生产焦锑酸钠的氧化后液中脱除砷和锑的方法,并探讨了提高副产品硫代硫酸钠产量的途径。

What is important is the total amount of sodium you are eating each day.

重要的是你每天吃的钠的总量。

It was found that the selective photoreductionreaction of this uranyl compound could take place under pulsed IR laser irradiation and the rate ofphotoreduction depended on the frequency, energy fluence and numbers of pulses of laser.

用TEA-CO_2激光研究了室温下固体的甲酸铀酰钠的红外光化学反应,发现该化合物在脉冲红外激光照射下可产生选择性的光化还原反应,其光化还原率与激光频率、能量密度和脉冲数有关。

Further aza-Wittig reactions of iminophosphorane 3 with aromatic isocyanates gave the carbodiimide s 4, which were reacted with secondary amines to give 2-dialkylamino-thieno[2,3-d]pyrimidin-4(3H)-ones 6 in the presence of catalytic amounts of EtO-Na+ in 58%~82%.

应用膦亚胺3与芳基异氰酸酯的氮杂Wittig反应,生成的碳二亚胺4,再与仲胺作用得到中间体5,而后在醇钠的催化下关环制得2-二烷氨基噻吩并[2,3-d]嘧啶-4(3H)-酮衍生物6,产率为58%~82

A method of new type phosphate-free detergent builder- crystalline layered sodium disilicate with sodium sulfate producing water glass was studied,and the effects of impurities to quality in the raw material were explored.

研究用芒硝生产泡花碱制备新型无磷洗涤助剂层状结晶二硅酸钠的方法,探讨了原料中各种杂质对产品质量的影响及工艺的控制。

Days. The fast gelable CS/CPS solution can be obtained by increasing concentration of GPS and pH of the solution.

增大甘油磷酸钠的浓度和提高溶液的pH值,可得到在37℃下快速凝胶化的CS/GPS凝胶。

The results show that the resulting product can be separated by the mixture of petroleum ether, aether and acetic acid (10:10:1, V/V). Among them, the oleic acid component can be eluted by the mixed solvent of ethanol and carbon tetrachloride (35:15, V/V), and then productivity of sodium oleoyl sarcosine can be obtained.

结果表明:用石油醚:无水乙醚:冰乙酸=10:10:1分离产物中的组分,再用无水乙醇:四氯化碳=35:15混合溶剂洗脱制备油酸组分,进而计算油酰肌氨酸钠的产率是可行的。

Some useful fluorine-containing intermedi-ates were synthesized by the reaction of activated methylenecompounds or silyl enol ether with 2,2-dihydropolyfluoro-alkanoates or 2-hydropolyfluoroalk-2-enoates in the presenceof different bases.

进一步研究表明,在氢化钠的作用下,苯乙腈,苄基苯基甲酮也可以与2-氢多氟-2-烯酸乙酯发生亲核加成反应,苄基苯基甲酮的加成中间体经多聚磷酸环化,得到了间位氟烷基取代的α-萘酚衍生物。

The sandwich-type immunocomplex was subsequently dissociated by the mixed solution of sodium hydroxide and trisodium citrate. The solution obtained, which contains gold nanoparticles coated with antibody, was used to quench fluorescence.

然后加入氢氧化钠和柠檬酸三钠的混合溶液解离免疫复合物,将获得的含有纳米金标记抗体的溶液进行荧光淬灭分析。

Later we checked thedirect interband transition of solid sodium by using thefourth DM.Although the problem seems to be out of date,expe-rimental observation coincideed only qualitatively with theo-ry in RPA,the quantitative discrepency has long been unsolved.

接着根据第四种介电矩阵我们计算了金属钠的直接带间跃迁,虽然这是一个陈旧的问题,但是实验测量与RPA计算的定量偏差始终未能消除。

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What would he tell Judith and the children?

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

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