1) carboxylic ion exchange fiber
羧酸型离子交换纤维
1.
Adsorption kinetic curve and isotherm of gentamycin on carboxylic ion exchange fiber were measured, and the effects of temperature, pH and inorganic ions on the adsorption were investigated.
测定了羧酸型离子交换纤维吸附庆大霉素的动力学曲线和吸附等温线,研究了温度、pH、无机离子对吸附效果的影响。
2) carboxylic acid
羧酸
1.
IR spectra analysis of lanthanide(M=La,Ce)complexes with carboxylic acid;
镧、铈羧酸盐配合物的红外光谱分析
2.
Koch Carbonylation Synthesis of Carboxylic Acids and Its Prospect in Industrial Application;
Koch羰基化反应合成羧酸及其工业应用前景
3.
Adsorption of carboxylic acids by "cage" polyamidoxime adsorbent;
羧酸在笼形聚偕氨肟树脂上吸咐
3) carboxylic acids
羧酸
1.
Effect of carboxylic acids on crystallization of calcium oxalate in gel systems;
凝胶体系中羧酸对草酸钙结晶的影响
2.
Correlation analysis of structures and pKa values of carboxylic acids by quantum-chemical descriptors;
应用量化参数研究羧酸的结构和pKa值的关系
3.
NaBH4 can not reduce carboxylic acids,esters,amides,acid chloride,amino acids and their derivatives under ambient conditions,reflux and standing overnight are necessary.
硼氢化钠可以很容易的将醛和酮还原为相应的醇,甚至可以在水介质中等当量的反应,但在温和条件下却很难将羧酸、羧酸酯、酰胺、酰氯和氨基酸及其衍生物还原,往往需要大大过量而且长时间回流,即使这样收率也很低。
4) carboxylate
羧酸
1.
The Syntheses and Characterization of Organotin Carboxylate Compounds;
有机锡羧酸化合物的合成与表征
2.
The results show that the content of shortchain carboxylates (the dominant species are acetate and formate) is relatively high, but that of difuctional species (oxalate) is low.
用离子色谱法分析了山东玲珑金矿床石英等矿物包裹体的浸取液，结果表明其中存在相当高的短链羧酸盐（以甲酸盐和乙酸盐为主）和少量的草酸。
5) carboxylic ester
羧酸酯
1.
Three Schiff base cobalt(Ⅱ) complexes containing benzoaza-15-crown-5,CoL1,CoL2 and CoL3 were used in catalytic hydrolysis of carboxylic ester (PNPP,p-nitrophenyl picolinate) as mimic hydrolytic metalloenzyme at pH 7.
0和25℃下,研究了三种带有苯并氮杂冠醚-15-冠-5侧基的Schiff碱钴(Ⅱ)配合物CoL1,CoL2和CoL3,作为模拟水解金属酶催化羧酸酯水解的作用。
2.
Complexes of the Schiff base with morpholino or aza-crown pendants,CoL1 and CoL2,as mimic hydrolytic metalloenzyme,were used in catalytic hydrolysis of carboxylic ester(PNPP) at pH7.
2和25℃下,用分光光度法研究了两种带冠醚环或吗啉环的Schiff碱钴(Ⅱ)配合物CoL1和CoL2,作为模拟水解金属酶,对羧酸酯水解的催化作用。
3.
Recent research progresses in the synthesis of carboxylic ester by phase transfer catalyst such as hexadecy trimethylammonium chloride/bromide and tetrabutylammonium chloride/bromid were reviewed.
综述了近年相转移催化法合成羧酸酯所用的各类相转移催化剂,如十六烷基三甲基氯/溴化铵、四丁基氯/溴化铵等,并对其优缺点进行了分析和比较。
6) polycarboxylate KH-JS
聚羧酸类
1.
This paper studied the effect of three kinds of water-reducing agent(lignosulfonate MG,naphthalene sulfonate FDN, polycarboxylate KH-JS)on setting time,fluidity and strength of building gypsum at 28 d,by using scanning electric microscope(SEM),the change of hydrated crystal morphology was also studied.
研究木质素类MG、萘系FDN和聚羧酸类KH-JS减水剂对建筑石膏的凝结时间、流动性、28d强度的影响规律,并通过扫描电镜(SEM)研究了水化后石膏晶体形貌的变化。
参考词条
补充资料：全氟羧酸离子交换膜
分子式： Rf-COOH
CAS号：
性质：又称全氟羧酸离子膜。电解食盐水溶液离子膜电解槽所用的膜材料之一。具有弱酸性和亲水性小的膜。膜内固定离子浓度较大，能阻止氢氧离子的反渗透，故阴极室的氢氧化钠浓度可达35%左右。电流效率可达95%以上。能置于PH>3的酸性溶液中。电解时化学稳定性好。缺点是电阻较大，在阳极室不能加酸，故氯中氧含量较高。日本旭硝子公司生产的Flemion膜即为此种膜。以四氟乙烯与磺反应后再与发烟硝酸作用生成丁内酯，然后，依次与甲醇、六氟环氧丙烷（1～2mol）反应，再与碳酸钠共热，生成单体。单体与四氟乙烯共聚，加碱水解得全氟羧酸树脂，经挤压，并加入聚四氟乙烯织物制成全氟羧酸离子膜。
CAS号：
性质：又称全氟羧酸离子膜。电解食盐水溶液离子膜电解槽所用的膜材料之一。具有弱酸性和亲水性小的膜。膜内固定离子浓度较大，能阻止氢氧离子的反渗透，故阴极室的氢氧化钠浓度可达35%左右。电流效率可达95%以上。能置于PH>3的酸性溶液中。电解时化学稳定性好。缺点是电阻较大，在阳极室不能加酸，故氯中氧含量较高。日本旭硝子公司生产的Flemion膜即为此种膜。以四氟乙烯与磺反应后再与发烟硝酸作用生成丁内酯，然后，依次与甲醇、六氟环氧丙烷（1～2mol）反应，再与碳酸钠共热，生成单体。单体与四氟乙烯共聚，加碱水解得全氟羧酸树脂，经挤压，并加入聚四氟乙烯织物制成全氟羧酸离子膜。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。