研究了在超声波辐照作用下聚丁二烯(PB)在环已烷溶液中的降解及与丙烯酸(AA)的共疑反应。
The ultrasonic degradation of polybutadiene (PB) and block copolymerization of PB with acrylic acid(AA)in cyclohexane solution were studied.
它们是乙酸、苯甲醛、正葵酸、14-甲基十五烷酸甲酯、丙三醇、苯甲酸、6 ,9-十八碳二烯酸甲酯、角鲨烷、硬脂酸和二十烷基油酸酯。
They were acetic acid, benzaldehyde, n caproic acid, 14 methyl pentadecanoic methyl ester, glycerin, benzoic acid, 6,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester.
以糠醛为原料,先制得顺丁烯二酸,用顺丁烯二酸与三氯锗烷在酸性条件下加成,然后水解得到1,1,2 乙烷三羧酸,收率为71%。
The preparation of 1,1,2 ethanetricarboxylic acid from addition reaction of maleic acid with germaniumane trichloride under acidic condition, then hydrolysis has been investigated, the yield is 71%.
产品成份:去离子水、甘油、丁二醇、红花提取液、尿囊素、苯氧乙醇、透明质酸、PEG - 40氢化蓖麻油、吡咯烷酮羧酸钠、EDTA -二钠、香料。
Ingredients: Deionized Water, Glycerin, Butanediol, Safflower Extract, Allantoin, Phenoxyethanol, ha, PEG-40 Hydrogenated Castor Oil, Pyrrolidone Carbozylic Acid, EDTA-Disodium Salt, Essence.
结论青海防风脂肪油中主要化学成分为二丁基邻苯二甲酸酯、 十八烷酸甲酯、 二十烷酸甲酯、 二十一烷酸甲酯等。
Conclusion The main chemical components of the fatty oil in Carum carvi L. were dibutyl phthalate, octadecanoic acid methyl ester, eicosanoic acid methyl ester, he…
成分:法国等渗温泉水、透明质酸、小黄瓜萃取精华、柠檬提取物、多效美白复合精华、二氧化钛、角鲨烷、霍霍巴油、VC磷酸酯等。
Ingredients: France isotonic hot spring water, hyaluronic acid, cucumber extract, lemon extract, complex multi-effect whitening essence, titanium dioxide, Squalane, Jojoba Oil, VC phosphate etc.
采用毛细管气相色谱法,以外标法测定枸橼酸托烷司琼中乙醇、二氯甲烷、氯仿、四氢呋喃、二烷、吡啶和甲苯的含量,用串联的HP -1 0。
A simple capillary GC method for the determination of residual ethanol, dichloromethane, chloroform, tetrahydrofuran, 1, 4 dioxane, pyridine and toluene in tropisetron citrate was established.
采用毛细管气相色谱法,以外标法测定枸橼酸托烷司琼中乙醇、二氯甲烷、氯仿、四氢呋喃、二烷、吡啶和甲苯的含量,用串联的HP -1 0。
A simple capillary GC method for the determination of residual ethanol, dichloromethane, chloroform, tetrahydrofuran, 1, 4 dioxane, pyridine and toluene in tropisetron citrate was established.
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