- 更多网络例句与硫代乙酸的相关的网络例句 [注:此内容来源于网络,仅供参考]
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This test is a measure of the unsaturated linkages in a fat and is determined by reacting the fat with a solution of iodine monochloride in a mixture of acetic acid and CCU, liberating excess iodine with KI, and titrating with Na2S203.
这个试验是不饱和键的测量,它由脂肪与一氯化碘在乙酸与CCU的混合物的溶液反应进行测量,用KI除多余的碘,用硫代硫酸钠滴定。
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The present calculations predict that thioacetic acid mainly exists as a CH3CSH tautomer, and both tautomers predominately adopt syn conformations, which reproduces the experimental observations.
本文计算预测硫代乙酸主要以CH3CSH的形式存在,两种异构体均以顺式构象为优势构象。
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Results show that, by using thionyl chloride and N,N-dimethyl formamide as chlorinating reagent and dichloromethane as solvent and taking -15℃ as reaction temperature, Z-iomer crystals with pale white color and stable to temperature can be obtained with an overall yield of 70%.
以2-(2-氨基噻唑-4-基)-2-甲氧亚氨基乙酸为原料,经盐酸化、氯代等反应合成了Z-2-(2-氨基噻唑-4-基)-2-甲氧亚氨基乙酰氯盐酸盐;氯代时以用亚硫酰氯和N,N-二甲基甲酰胺的混合物代替五氯化磷作氯化剂,并考察了温度和溶剂对氯代产物中Z-异构体和E-异构体收率的影响。
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A method to measure the content of nickel in the nickel iso - caprylate by complexometric titration using ethylenediamine tetraacetic acid was set up.
以乙二胺四乙酸或柠檬酸作配位剂,在无氰的硫代硫酸盐–亚硫酸盐体系中研究了金在镀镍铜基底上的电沉积。
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The compositions can also contain microcrystalline cellulose, croscarmellose sodium, anhydrous lactose, magnesium stearate, micronized edetate calcium disodium hydrous, and micronized sodium thiosulfate pentahydrate.
所述组合物也可以包含微晶纤维素、交联羧甲纤维素钠、无水乳糖、硬脂酸镁、微粒化的含水乙二胺四乙酸钙二钠和微粒化的硫代硫酸钠五水合物。
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On the condition of the existence of the buffer solution of ammonium acetate (PH5-6) and ammonium thiocyanate, quantitatively reduce Cu2+ into Cu+ by using sodium thiosulphate .
本文在PH5-6的乙酸铵缓冲溶液及硫氰酸铵存在下,用硫代硫酸钠定量还原Cu~(2+)为Cu~+,Cu~+与SCN~-结合,形成稳定的硫氰酸亚铜白色沉淀,反应终点可由全自动电位滴定仪确定。
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The structural assignment of Ⅱwas supported by spectral data and was confirmed by the identification of the compound as the product obtained by synthesis from triethyl orthoacetate and 2- cyanot hioacetamide.
结构的指定得到由光谱数据的支持,确认结构是通过原乙酸三乙酯和2-氰基-硫代乙酰胺合成得到的化合物。
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In the third chapter, eight new complexes of 4, 6-dimethylpyrimidine 2-thioacetic acid with rare earth metals has been synthesized and characterized by means of elemental analysis, molar conductivity, IR,〓 NMR and TG-DTA. The general formula of the complexes is Ln〓(n=4 or 5). In the complexes, the deprotonated ligand coordinated to the rare earth metal ions in chelate bidentate mode. 4 or 5 molecular of crystal water existed in the complexes.
第三章合成了八种4,6-二甲基嘧啶-2-硫代乙酸的稀土配合物,通过元素分析、摩尔电导、红外光谱、核磁共振氢谱和热重-差热对配合物进行了表征,研究结果表明,配合物的组成为Ln〓n=4或5),在配合物中配体羧基脱去质子后采用螯合双齿的方式与稀土离子形成配位键,同时,配合物中含有4或5个结晶水。