查询词典 sulfur chloride
- 与 sulfur chloride 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The optimum HCI/ferrous chloride molar ratio was 1/3.3 when ironic chloride was generated by using hydrogen peroxide. The generated ironic chloride oxidized acetoin in good yield and could be recycled for many times.
用双氧水再生氯化铁时,加入浓盐酸最佳用量与氯化亚铁的摩尔比为1:3.3,再生后的氯化铁氧化效果良好,可多次循环使用。
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The effects of doping concentration of iodine, doping time, doping temperature and exposure time on volume resistivity of anthracite were studied; and also the effects of solution concentration of cupric chloride, doping time, doping temperature, soking time of cupric chloride and exposure time on the volume resistivity were studied; Anthracitic resistivity has been decreased in dissimilar extent, and furthermore ,volume resistivity stability of the doping anthracite made by liquid phase doping method is more better than gas phase mothed; Resistivity and its stability were better than the doping method of iodine in fused salt doping method of cupric chloride.
研究了I_2掺杂浓度、掺杂时间、掺杂温度和暴空时间对无烟煤电阻率的影响;探讨了CuCl_2溶液的浓度、掺杂时间、掺杂温度和CuCl_2溶液浸泡放置时间以及暴空时间对无烟煤电阻率的影响:结果发现:I_2气相掺杂和液相掺杂均使无烟煤的电阻率有不同程度的降低,而液相掺杂法所得材料的电阻率稳定性更高;CuCl_2熔盐掺杂法所得材料的电阻率及其稳定性均优于I_2掺杂法。
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Magnesium chloride ; magnesium oxide ; anhydrous magnesium chloride ; magnesium chloride hexammoniate ; bischofite ; metal magnesium ; dehydration
氯化镁;氧化镁;无水氯化镁;六氨氯化镁;水氯镁石;金属镁;脱水
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For the purpose of research on relationship between liquid crystal phenomena and blood compatibility, the propionic, n-butyric esters of hydroxypropyl cellulose were prepared with hydroxypropyl cellulose and propionyl chloride/ butyryl chloride. The reaction conditions and phase behavior have been studied. The results show that the reaction time, temperature and amount of propionyl chloride have effect on content of propionyl, and the amount of proionyl chlorideis more obvious than the other factors.
液晶态的血液相容性是目前抗凝血材料研究的一个新领域,本文是在一系列液晶态材料血液相容性研究的基础上以羟丙基纤维素和丙酰氯为原料合成羟丙基纤维素丙酸酯和羟丙基纤维素丁酸酯两种液晶高分子化合物,并对其合成条件和相变行为进行了研究,结果表明:反应时间、反应温度和酰氯的用量均对产物中的酰基含量有影响,其中以酰氯用量影响最为明显。
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Trisodium salt of N,N,N'-ethylenediamine triacetic acid was prepared by hydrolyzing 2-oxo-1, 4-piperazine diacetic acid(3-KP) in the strong base solution. Then it was combined with lauroyl chloride, hexadecanoyl chloride and benzoyl chloride respectively. N-lauroyl-ED3A and N-hexadecanoyl-ED3A were prepared in succsess. The molecular structure of N-lauroyl-ED3A was characterized by ~1HNMR and ~(13)CNMR. The molecular structure of N-hexadecanoyl-ED3A was characterized by 1HNMR.
将3-KP 在强碱性条件下水解,生成ED3ANa3 的水溶液,然后分别与月桂酰氯、棕榈酰氯和苯甲酰氯反应,成功制得N—月桂酰基ED3A 和N—棕榈酰基ED3A,并用~1HNMR 和~(13)CNMR 对N—月桂酰基ED3A 的分子结构进行了表征,用1HNMR 对N—棕榈酰基ED3A 的分子结构进行了表征。
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Anhydrous magnesium chloride may be prepared from materials containing magnesium chloride such as magnesium chloride hydrate, carnallite or bittern by different dehydrating methods of organic solvent distillation or molecular sieve absorption, gas protective heating, discomposing the MgCl2-NH3 complex that can be composed from high boiling-point polar-solvent system...
无水氯化镁制备技术经历几十年不断的探索,取得了一些进步,但彻底改变耗能高、污染腐蚀严重、流程复杂的工艺过程,开发流程简单、低污染腐蚀、低成本的绿色工艺仍然需要更深入的研究。
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The synthesis methods of ethyl lactate catalyzed by P-toluene sulfonic acid, cationic exchange resin, ferric chloride hexahydrate, stannous chloride, Aluminium chloride, modified zirconium oxid, ferric-potassium vitriol, ammonium ferric sulfate dodecahydrate, rave earth sulfate, sodium bisulfate monohydrate, complex solid superacid, heteropoly acid, molecular sieve, ionic liquid and lipase etal.
评述了对甲苯磺酸,阳离子交换树脂,六水三氧化铁,氯化亚锡,三氯化铭,改性氧化锆,铁钾矾,十二水合硫酸铁铵,稀土硫酸盐,一水硫酸氢钠,复合固体超强酸,杂多酸,分子筛,离子液体和脂肪酶等催化剂催化合成乳酸乙酯的合成方法。
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Tetrachloroterephthalic acid was prepared by chlorinating terephthalic acid, oleumsolvent and iodine catalyst. Tetrachloroterephthalic acid was acylated by sulphurous oxychloride in the presence of DMF to form tetrachloroterephthaloyl chloride. The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. The ester was reduced with potassium borohydride and lithium chloride to give tetrafluoroterephthalyl alcohol. The above product was bromated in the hydrobromic acid to obtain 4-bromomethyl-2,3,5,6-tetrafluoro-benzene methanol. 4-Methyl-2,3,5,-6-tetrafluorobenzene ethanol was obtained by reducing the bromide with magnesium. In the exist of DCC and DMAP, tefluthrin was got by the condensation reaction between 4-methyl-2,3,5,6-tetrafluoro-benzene methanol and-(1RS,3RS)- 3-(2- chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cycolpropanecar-boxylate acid.
对苯二甲酸与氯气在碘存在下以发烟硫酸为溶剂进行氯化制备四氯对苯二甲酸;再以DMF为催化剂与二氯亚砜反应生成四氯对苯二甲酰氯;以氟化钾为氟化剂,环丁砜为溶剂置换氟化,再与甲醇酯化得到四氟对苯二甲酸甲酯;以KBH4-LiCl为还原剂二甲醚为溶剂反应制得四氟对苯二甲基苄醇;以氯苯为溶剂在溴化氢溶液中溴化得到溴化产物;在乙醇溶液中经镁粉还原得到4-甲基-2,3,5,6-四氟苄醇;甲基苄醇与功夫酸在催化剂二环己基碳二亚胺和4-二甲氨基吡啶作用下缩合得到七氟菊酯,总收率达43.6%。
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This unit picks the waterused achievement to carry the freezing mixture, also allows to use theglycol or the sodium chloride, the calcium chloride isohydric solutionachievement carries the freezing mixture, but when uses the sodiumchloride, the calcium chloride should select the antiseptic to protectthe copper pipe
本机组采用水作为载冷剂,也允许采用乙二醇或氯化钠、氯化钙等水溶液作为载冷剂,但当采用氯化钠、氯化钙时应选用防腐剂以保护铜管。
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Polyaluminum chloride is a new and efficient inorganic polymer coagulants. The products use aluminum chloride, calcium aluminates made with advanced technology, have a good flocculation effect. its effect is better than the traditional aluminum sulfate and water purification molysite ordinary inorganic coagulants and general polyaluminum chloride.
聚合氯化铝是一种新型高效的无机高分子混凝剂,本产品选用三氯化铝、铝酸钙粉以先进工艺制成,具有良好的絮凝效果,其净水效果优于传统的硫酸铝和铁盐等普通无机盐类混凝剂及一般的碱式氯化铝。
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- 推荐网络例句
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He paid $5,000 for this cupcake.
他我这个纸杯蛋糕花了5000美元。
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I mean, if you want to, that is
我的意思是,如果你们想吃的话。
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In addition to his fee, he would be awarded an unaltered clone of himself.
除了费用,他将获得一个不作任何改造的克隆体。