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- Benzoic acid,benzyl benzoate and fluorenone were obtained with purity of 95%,... 经熔融结晶精制后;苯甲酸纯度可达99.;6%25;苯甲酸苄酯和芴酮纯度均达95%25以上。
- The analytical results have shown that products mainly consisted of benzaldehyde,benzyl alcohol,benzoic acid and benzyl benzoate etc. 结果表明,甲苯选择性氧化产物主要为苯甲醛、苯甲醇、苯甲酸及苯甲酸苄酯等。
- Can also use the miticide, such as the Nipah net, insects and mites phosphorus and other lipid benzyl benzoate eliminate mites. 也可使用杀螨剂，如尼帕净、虫螨磷和苯甲酸苄脂等灭螨。
- It contains not less than 45.0 per cent m/m and not more than 70.0 per cent m/m of esters, mainly benzyl benzoate and benzyl cinnamate. 本品含酯类成分以安息香苯甲酯和桂皮酸苯甲酯计应为45.;0%25至70
- The synthesis of benzyl benzoate from sodium benzoate and benzyl chloride by phase transfer catalysis process is studied in the article. 由苯甲酸钠和氯化苄通过相转移催化法合成了苯甲酸苄酯,考察了几种季铵盐类相转移催化剂的亲核取代反应性能。
- Topical treatments recommended in pregnancy include permethrin and benzyl benzoate lotion (BBL), but "the eidence of their safety tends to be anecdotal. McGready博士及其同事报道，孕期推荐使用苯甲酸苄酯洗液（BBL）或氯菊酯的局部治疗，但是其安全性的证据是无对照的。
- The experiment showed that this separation method is feasible and benzyl benzoate with purity about 90% and fluorenone products with purity of more than 85% were obtained. 试验表明该方法是切实可行的,并获得了纯度为90%25左右的苯甲酸苄酯产品和85%25以上的芴酮产品;
- Benzyl benzoate was synthesized by the esterification of sodium benzoate and benzyl chloride in the presence of water and triethylamine which was taken as the phase transfer catalyst. 研究了在有水存在下，利用相转移催化剂三乙胺催化苯甲酸钠和氯化苄的酯化反应。
- Synthesis or benzyl benzoate by phase transfer catalysis 苯甲酸苄酯的相转移催化合成
- Keywords phase transfer Catalysis;Synthesis;benzyl benzoate; 相转移催化;合成;苯甲酸苄酯;
- Keywords benzyl benzoate;hydrolysis;benzylalcohol;yield; 苄酯;水解;苯甲醇;收率;
- A study on technological improvement for synthesis of Benzyl Benzoate 苯甲酸苄酯合成工艺改进研究
- STUDY OF THE PROCESS OF REACTIVE DISTILLATION FOR PREPARING BENZYL BENZOATE 反应精馏制苯甲酸苄酯的研究
- STUDY ON CATALYTIC SYNTHESIS OF BENZYL BENZOATE UNDER MICROWAVE IRRADIATION 微波辐射法催化合成苯甲酸苄酯的研究
- I mind my p's and q's whenever I see him. 每当我见到他我都谨慎行事。
- In English, b, p, m and w are bilabials. 英语中的b、p、m、w为双唇音。
- AB and CD intersect at (the point) P. AB线和CD线在P点相交。
- Synthesis of Benzyl Benzoate under Microwave Irradiation and Phase Transfer Catalysis 微波辐射相转移催化合成苯甲酸苄酯
- The time now is 10:00 p, m, sharp. 现在的时间是晚上10点整。
- Keywords benzoic acid residua;benzyl benzoate;fluorenone;flash distillation;vacuum distillation; 苯甲酸釜残液;苯甲酸苄酯;芴酮;闪蒸;减压精馏;
