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- oxalic acid method 草酸法
- A salt or an ester of oxalic acid. 草酸盐草酸的盐或酯
- 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 is70.0%. 以木屑为原料草酸二水合物收率可达70.;0%25。
- The preparation method of oxalic acid from wheat straw by hydrolysis-oxidation-hydrolysis was investigated. 研究了以麦秆为原料用水解-氧化-水解法制取草酸的工艺方法。
- 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 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。
- Hydrochloric Acid, Cationic Surfactant, Perfume, Oxalic Acid, Dye. 产品成份：盐酸、阳离子表面活性剂、草酸、香精、颜料。
- The ameliorating effect of oxalic acid was most apparent. 3种有机酸中草酸对铅胁迫的缓解作用最明显。
- Porous alumina films with nanometer size have been fabricated through electrochemical method in the aqueous solutions of sulfuric acid and oxalic acid. 采用电化学方法在硫酸和草酸溶液中制备了具有纳米结构的多孔氧化铝。
- The preparation method of oxalic acid from oxidation-hydrolysis of rice chaff is presented and optimum condition is determined. 摘要研究了以稻糠为原料用水解-氧化-水解法制取草酸的工艺方法。
- 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。
- Using this method, by decreasing the injected quantity of oxalic acid and sulfuric acid in the solution, the result is satisfactory. 测定了一些白酒样品中的甲醇含量，结果令人满意。
- The article improved Phenol-Sulphate acid method on the base of experiment. 本文在实验的基础上对硫酸-苯酚定糖法进行了改进。
- Y_2O_3:Eu~(3+) powder were synthesized by oxalic acid precipitation method,and the effects of surfactant on the particle size and particle size distribution were investigation. 利用草酸沉淀法制备Y2O3:Eu3+粉体,研究表面活性剂PEG对Y2O3:Eu3+氧化物的形貌、分散性、粒径分布及粒度的影响;
- Primary by-products range from benzoquinone to maleic acid and oxalic acid. 中间产物主要为苯醌、马来酸、草酸等，
- To treat(a specimen)with an oxalate or oxalic acid. 用草酸盐或草酸处理（样品）
- Used oxalic acid many times,but I failed.It seems not lacquer but silver. 用脱漆济;草酸;除了几边也退不掉;好象不是漆是银.
- 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%25。
- By using rice bran phytin and maize phytin as material with the method of autophoteolysis or oxalic acid replacement reaction phytic acid was extracted. 以米糠、玉米植酸钙为原料，采用自溶法和草酸置换法制取植酸。试验表明，无论是以玉米植酸钙还是以米糠植酸钙为原料，用自溶法制得植酸的质量明显优于草酸置换法。
