基本释义:

羧酸

网络释义

1)carboxylic acid,羧酸

2)carboxylic acids,羧酸

3)carboxylate

[kɑ:'b?ksileit],羧酸

4)carboxyl phosphonic acid,羧酸膦酸

5)carboxylic ester,羧酸酯

6)polycarboxylate KH-JS,聚羧酸类

用法和例句

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

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

Adsorption of carboxylic acids by "cage" polyamidoxime adsorbent;

羧酸在笼形聚偕氨肟树脂上吸咐

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

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

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。

The Syntheses and Characterization of Organotin Carboxylate Compounds;

有机锡羧酸化合物的合成与表征

The synthesis and characteristics of Cd(Ⅱ) with carboxylate and bis(imidazole) ligands

镉与羧酸及二咪唑化合物的合成及表征

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。

Quantum chemistry studies on microscopic mechanism of scale and corrosion inhibition for carboxyl phosphonic acid;

羧酸膦酸型化合物的阻垢缓蚀性能的量子化学研究

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。

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。

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。

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。

1,2,3,4-benzenetetracarboxylic acid

１,２,３,４－苯四羧酸

1,2,4-benzenetricarboxylic acid

１,２,４－苯三羧酸

dipicolinic acid

2,6-吡啶二羧酸

3-naphthol-2-carboxylic acid

３－萘酚－２－羧酸

2,4-dihydroxybenzene carboxylic acid

２,４－二羟基苯羧酸

2,3-pyridinedicarboxylic acid

２,３－吡啶二羧酸

carboxylate surfactant

羧酸盐（或羧酸酯）型表面活性剂

Research on Development of Aromatic Carboxylic Coordination Compounds

芳香羧酸(苯基多羧酸)配合物研究进展

One exception is the decarboxylation of aromatic carboxylic acids.

芳香羧酸进行脱羧反应是一个例外。

phenyl polycarboxylic ester plasticizer

苯多羧酸酯类增塑剂

2-hydroxy-1,2,3-propanetricarboxylic acid

２－羟基－１,２,３－丙三羧酸

sorbitan carboxylic ester

脱水山梨(糖)醇羧酸酯

4-amino-3,5,6-trichloropicolinic acid

４－氨基－３,５,６－三氯吡啶羧酸

aurintricarboxylic acid triammonium salt

【有化】金精三羧酸三铵盐

carboxylic acid type cation exchange fibre

羧酸型阳离子交换纤维

Reduction of Carboxylic Acid on NaBH_4 / I_2 System;

NaBH_4/I_2体系羧酸的还原

ornithine decarboxylase

鸟氨酸脱羧酶 鸟氨酸脱羧酶

phosphonoacetic acid

膦酰乙酸，膦羧乙酸