Ethylene glycol monoether acetate are synthesized from acetic acid and ethylene glycol monoethyl ether with supported phosphotungstic acid catalyst. 以醋酸和乙二醇单乙醚为原料,活性白土负载磷钨酸作为催化剂,合成了乙二醇单乙醚醋酸酯。
The kaolinite-potassium acetate intercalation complex was prepared and characterized by XRD, FT-IR, and TG-DSC. 用XRD、FT-IR和TG-DSC等方法研究了高岭石-醋酸钾插层复合物的形成过程。
This paper introduces modification of poly vinyl acetate by copolymerization and the application state of the modified products. 文章介绍了聚醋酸乙烯酯共聚改性研究及改性产品应用进展情况。
Objective: to establish a method for determination of dexamethasone acetate in compound nose ointment. 目的:建立复方鼻用软膏中醋酸地塞米松含量测定方法。
Solution vinyl coating are based on copolymers or terpolymers of vinyl chloride, vinyl acetate, and other monomers. 可溶解乙烯基树脂是氯乙烯、醋酸乙烯和其它单体共聚物或三元共聚合物。
And a safer version, cellulose acetate, was not on the market yet when Bakelite came out. 当胶木问世时,市场上还没有出现更安全的版本,醋酸纤维素。
Ultraviolet spectrophotometry was used to measure chlorhexidine acetate content in disinfectant solution. 用紫外分光光度法对消毒液中醋酸氯己定含量进行了测定。
With solid sulfanilic acid as catalyst we can synthesize iso-amyl acetate from acetic acid and iso-amyl alcohol. 用固体酸对氨基苯磺酸作催化剂,以异戊醇和冰乙酸直接酯化合成乙酸异戊酯。
The function of storage heat of hydrated sodium acetate was studied in the phase changing. 研究了水合乙酸钠相变蓄热的性能,硼砂对过冷现象有明显的抑制。
This paper studied the synthesis of hexyl acetate with acetic acid and hexyl alcohol as reactants and sodium bisulfate as catalyst. 研究了以硫酸氢钠为催化剂,乙酸和正己醇为原料合成乙酸正己酯,并考察了反应条件对酯化率的影响。
Study on analysis method of vinyl acetate in air and discharge gas 空气和废气中醋酸乙烯分析方法的研究
A new method for the determination of methanol, Ethyl Acetate and fusel oils in sticky rice alcohol by capillary gas chromatography was studied. 建立了一种用毛细管气相色谱法测定糯米酒中甲醇、乙酸乙酯和杂醇油的方法,并对色谱条件进行了优化。
Conclusions The effect of gossypol acetate was possibly concerned with its concentration and the administration time. 结论醋酸棉酚对雄鼠生殖系统的影响可能与其浓度和药物作用的时间有关。
In chloroform, ethyl acetate or acetone, almost insoluble Uses: analgesic. 在氯仿、醋酸乙酯或丙酮中几乎不溶用途:镇痛药。
PCE degradation was carried out when methanol, lactate, and acetate were used as electron donors. 实验选用甲醇、乳酸盐和醋酸盐作为电子供体,对PCE的降解进行研究。
Cellulose Acetate The first commercial membranes for reverse osmosis and ultrafiltration were made from cellulose acetate. 纤维素醋酸酯第一个商业用反渗透膜和超滤膜是由纤维素醋酸酯制成。
In benzene or ethyl acetate solution rates increase linearly with methyl methacrylate concentration. 在苯或乙酸乙酯溶液中其衰减速度随甲基丙烯酸甲脂浓度呈直线地增大。
Antibacterial substances were existed in ethyl acetate and n-butanol phase during extraction process. 提取物的乙酸乙酯和正丁醇部位具有抑菌活性。
N-vinyl-N-methyl-acetamide was synthesized from N-methyl acetamide and vinyl acetate with potassium hydroxide as catalyst. 以N-甲基乙酰胺、醋酸乙烯酯为原料,以氢氧化钾为催化剂合成了N-乙烯基-N-甲基乙酰胺。
Which had traces of propylene glycol and isoamyl acetate. 有丙二醇和乙酸异戊酯的痕迹。
Reactive distillation for synthesizing ethyl acetate was taken as an example to demonstrate the proposed simulation and optimization methods. 以合成乙酸乙酯的反应精馏过程为例说明上述模拟和优化方法。
Preparation, homogeneity, stability and certification of reference substance of bornyl acetate were studied. 研究了乙酸龙脑酯标准样品的制备、均匀性和稳定性及其定值方法。
The slant-hole tray was applied to the technical innovation of vinyl acetate distillation column. 采用复合斜孔塔板对醋酸乙烯精馏塔进行了技术改造。
The saponification of ethyl acetate and the hydrolysis reaction system of sucrose have been studied, the accuracy of this method is verified by the experimental re. 利用本方法研究乙酸乙酯皂化反应和蔗糖水解反应体系,实验结果验证了本方法的准确性。
By using cadmium acetate as catalyst, polyitaconic anhydride was prepared through ring opening polymerization of itaconic anhydride. 以衣康酸为原料合成了衣康酸酐,并在乙酸镉的催化作用下通过开环聚合得到了聚衣康酸酐。
Methods: The contents of metronidazole, clotrimazole and chlorhexidine acetate were detected by RP-HPLC. 采用反相高效液相色谱法测定妇康载体栓中的甲硝唑、克霉唑和醋酸氯己定。
HPLC method was established for the determination of the related substances in compound cyproterone acetate tablets. 建立了HPLC法测定复方醋酸环丙孕酮片的有关物质。
Objective: to study the adsorption properties of montmorillonite in chlorhexidine acetate solution. 目的:研究蒙脱石对醋酸氯己定的吸附特性。
OBJECTIVE To establish a method for the limit test of ethanol and ethyl acetate in Shenmai injection. 可应用于限量检查参麦注射液中乙醇与乙酸乙酯的残留量。
To study a new method for the simultaneous determination of Chlorhexidine Acetate and Metronidazole in the compound disinfectant. 目的研究同时测定复方消毒剂中醋酸氯已定和甲硝唑的方法。