oxalic acid

The oxalic acid was cauterize in the muffle at 200 ℃ until fully volatilized. The solution pH was adjusted with drop ( 1+ 1) hydrochloric acid ( the congo red test paper change color from red to blue) to about 4 to remove carbon dioxide.

在马弗炉（200℃）灼烧至草酸全部挥发，滴加（1+1）盐酸，使刚果红试纸由红变蓝色（或调节pH到4左右），除去二氧化碳。

In dodecyl amine system, oxalic acid can be as the effective modifier to float feldspar from quartz in dodecyl amine system at pH2.

草酸可以作为在十二胺体系中，在强酸性条件下，实现长石与石英的浮选分离的有效调整剂。

Traditional processes of preparation of oxalic acid and oxalate were introduced.

简述草酸及草酸酯合成的传统方法.

A comprehensive review is given about the determination of oxalic acid and calcium.

综述了近四年国内草酸和钙离子的常用测定方法.

The major organic acids in tea root exudates were malic and oxalic acid, but malic, oxalic acid, pyruvic acid, ascorbic acid and a-ketoglutaric acid in tea leaf.

茶树体内可检测到的有机酸主要有草酸、丙酮酸、苹果酸、抗坏血酸、α-酮戊二酸和琥珀酸，而茶树根系分泌物中有机酸主要为草酸和苹果酸。

The aperture and porosity are compared which in sulfuric acid and oxalic acid by SEM.

在扫描电镜的帮助下还比较了在草酸和硫酸电解液中形成膜的孔径和孔隙率的大小.

The preparation method of oxalic acid from beet residues with a hydrolysis-oxidation-hydrolysis process was studied.

研究了以甜菜渣为原料用水解 - 氧化 - 水解法制取草酸的工艺方法.

Study on Preparation of Oxalic Acid From Acetylene by Catalytic Oxidation Method

乙炔催化氧化合成草酸的研究

The determinations of oxalic acid are aqueous titration, chromatography, fluorimetric method, et al.

其中,草酸的测定方法有滴定法 、 色谱法 、 荧光法等.

The oxalic acid solution can be re-used through displacement for reducing the cost.

置换后草酸溶液循环使用,降低了成本.

Oxalic acid is always formed during the reaction.

在反应过程中,乙二酸总是会生成的.

The effects of propanedioic acid, succinic acid, hexanedioic acid, sebacic acid and oxalic acid on floatation performance of feldspar and quartz in dodecyl amine system were investigated.

在十二胺捕收剂体系中，研究了丙二酸、丁二酸、己二酸、癸二酸和草酸对长石和石英浮选行为的影响。

From 872 clones asexually propagated 3 times from the callus treated with 2% EMS, 7 clones resistant to 3. 5 mmol oxalic acid were screened out, and 5 out of 7 clones were stable in resistance.

经2%EMS处理的愈伤组织扩增3代后，从872块愈伤组织中.筛选到7块抗（耐）3.5mmol草酸的愈伤组织，其中有5块抗性稳定。

Quality analysis and determination of oxalic acid content of different varieties of carambola

不同杨桃品种品质分析及草酸含量的测定研究

ON THE PATHOGENIC MECHANISM OF SCLEROTIN(?) A SCLEROTIORUM IN WINTER RAPE ⅲ. Preliminary Studies on Accumulation and Distribution of Oxalic Acid in Infected Tissues

油菜菌核病的致病机制Ⅲ.罹病组织内草酸毒素积累和分布的初步分析

In this thesis, Cerium nitrate and oxalic acid are selected and a simple precipitator method is used to prepare ceria octahedrons pass through hydrothermal process. A self-sacrifice template mechanism is proposed for the formation of ceria octahedrons based on the experimental.

论文中，我们利用简单的沉淀法，通过水热处理，制备出了氧化铈八面体，并基于实验结果给出了氧化铈八面体形成的自牺牲模板法机理。

Hydrolysis is a simple method to get oxalic acid from sweet potato powder.

水解山芋粉制取草酸，是一种简便的草酸制取法。

The preparation method of oxalic acid from plant fibre sunflower shell by hydrolysis-oxidation-hydrolysis was investigated.

研究了以植物纤维向日葵壳为原料,采用水解 - 氧化 - 水解法制取草酸(乙二酸)的新工艺.

Oxalic acid , also known as acid, and its compounds have widespread industrial applications in several fields.

草酸是一种重要的化工原料,在化工生产的许多领域均有应用.

The majority of kidney stones consist of an insoluble compound of calcium and oxalic acid.

多数肾结石由钙和草酸形成的不可溶化合物组成.

Tetrabutyl titanate, oxalic acid dihydrate, citric acid monohydrate have some catalytic effects on TEOS, but no film is obtained.

钛酸四正丁酯、草酸、柠檬酸对TEOS有催化作用，但它们作为催化剂时，TEOS不成膜。

Sodium diethyl oxalacetate was prepared by Claisen condensation with acetic and oxalic acid esters.

以乙酸乙酯和草酸二乙酯为原料，经交叉Claisen酯缩合反应合成钠代草酰乙酸乙酯。

Oxalic acid can be electrochemically reduced in the solution of acetonitrile of tetraethylammonium chloride.

草酸在四乙基氯化铵的乙腈溶液中有较好的电化学还原性能。

It determines to be the structure of oxalic acid by IR spectrum and melting point.

以红外光谱及熔点确定了产物的结构.

Applied circumstances of oxalic acid and its products is summarised.

总结了草酸及其产品在国内外的应用情况.

The ceriumterbium coprecipitation oxide was prepared using oxalic acid and cerium chloride.

采用氯化铈铽水溶液与草酸为原料,合成了铈铽共晶氧化物.

Oxalic acid electrochemical reduction techniques to produce glyoxalic acid is quite an ideal preparation method.

草酸电解还原生产乙醛酸技术是比较理想的制备方法.

The third-phase behavior in extraction oxalic acid by trioctylamine ( TOA) was investigated through measuring the solubility of oxalic acid in organic solvent.

以三辛胺（TOA）萃取草酸时出现第3相的基本规律为研究对象，实验测定了无水溶剂及液液萃取平衡有机相中草酸的溶解度及其随TOA和正辛醇浓度的变化规律。

The content of tartaric acid content is rises much more, and lactic acid, oxalic acid, and malic acid are a small drop.

酒石酸含量的增加幅度相对较大，而乳酸、草酸和苹果酸含量均有所减少。

The yield of oxalic acid dihydrate is up to 80 % under the optimum condition.

确定了最佳工艺条件,在此条件下,草酸二水合物收率可达80%.