Precipitation by oxalate is the primary method to produce rare earth oxides.

Thus there is a greater calcium need to immobilize the oxalate.

因而需要较大量钙去固定草酸.

Results: The calcium oxalate crystal is lump crystal.

结果翻白草中草酸钙晶体呈块状,为“块晶”.

Conclusion: The needle crystal of calcium oxalate is one of the stimulating components in Pinellia ternata.

结论: 半夏中所含的草酸钙针晶为半夏的刺激性成分之一.

This is a result of poor food or a steady diet of high oxalate foods.

这种情况的产生是因为不好的食物或者长期的高草酸盐食物食物造成的.

Determination of palladium in catalyst of synthetic oxalic ester by flame atomic absorption spectrometry was studied.

本文研究了火焰原子吸收光谱法测定合成草酸酯催化剂中钯.

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.

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.

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.

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.

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.

Oxalic acid is always formed during the reaction.

在反应过程中,乙二酸总是会生成的.

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%.

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.

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.

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.

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 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 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.

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.

The oxaloacetate level in the mitochondria is determined by the redox state.

线粒体中草酰乙酸水平又取决于氧化还原状态.