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- Butyraldehyde glycol acetal was synthesized from butyraldehyde and glycol by using iodine as catalyst. 以单质碘为催化剂,通过丁醛和乙二醇反应合成了丁醛乙二醇缩醛。
- Using self-made H3PW6Mo6O40 as catalyst,butyraldehyde glycol acetal was prepared by butyraldehyde and glycol. 用自制的磷钨钼杂多酸作催化剂,以丁醛和乙二醇反应合成了丁醛乙二醇缩醛。
- N-Octyl aldehyde glycol acetal was synthesized using n-octyl aldehyde and glycol as raw materials and lanthanum methanesulfonate as catalyst. 以正辛醛和乙二醇为原料,甲基磺酸镧为催化剂,合成了正辛醛缩乙二醇。
- Acetal tubular load stabilizing frame. 令负重更为稳定。
- First statement: Ethylene glycol is sweet. 第一句:甘醇是甜的。
- Hexylene glycol for industrial use. 工业已烯乙二醇。
- Water, Propylene Glycol Dicaprylate/ ... 恩,就是那个牛油果。
- Vanillin 1,2-propylene glycol acetal was synthesized from Vanillin and 1,2-propylene glycol using ferri postassium sulfate as catalyst. 以铁钾盐加合物为催化剂,通过香兰素与1,2-丙二醇反应合成了香兰素1,2-丙二醇缩醛。
- The synthesis of furfural glycol acetal from furfural and ethylene glycol in the presence of ion exchange resin was investigated. 本文研究了在离子交换树脂存在下,由糠醛和乙二醇反应制备糠醛缩乙二醇的工艺条件。
- Vanillin propylene glycol acetal was synthesized using vanillin and propylene glycol as raw materials and calcium methanesulfonate as catalyst. 以草香醛和1,2-丙二醇为原料,甲基磺酸钙为催化剂,合成了香草醛缩丙二醇。
- ethylidene acetate 乙叉醋酸酯
- Bromobutyraldehyde ethylene acetal was synthesized from crotonaldehyde by addition with hydrogen bromide and then acetalation with ethylene glycol with an overall yield of 80. 巴豆醛先与溴化氢加成;再与乙二醇缩醛化得到3-溴代丁醛缩乙二醇;收率80.;8%25。
- Bromobutyraldehyde ethylene acetal was synthesized from crotonaldehyde by addition with hydrogen bromide and then acetalation with ethylene glycol with an overall yield of 80.8%. 巴豆醛先与溴化氢加成;再与乙二醇缩醛化得到3-溴代丁醛缩乙二醇;收率80.;8%25。
- Using concentrated H_2SO_4 modified coal based activated carbon as catalyst,benzylaldehyde glycol acetal was synthesized from benzylaldehyde and glycol. 以浓硫酸改性煤基活性炭为催化剂,以苯甲醛和乙二醇为原料合成苯甲醛乙二醇缩醛的反应条件进行了研究。
- Acetal is among the strongest and stiffest of all thermoplastics. 在所有的热塑性塑料中,乙缩醛具有最高的强度和硬度。
- "Acetal Method" is a new technology to prepare phenolic resin. “缩醛法”是一种合成酚醛树脂的新方法。
- CS - 14 is studied as a kind derivate of polyethylene glycol. CS 14是1种聚氧乙烯类化学增感剂。
- OBJECTIVE To synthesize 4-chlorobutanal acetal by improved method. 目的改进4-氯丁醛缩醛的合成方法。
- Vegan. Paraben, SLS, Propylene Glycol Free &Hypoallergenic. 素食,不含帕拉胶,SLS,丙二醇,低变应原。
- Vegetarian. Paraben, Propylene Glycol and Gluten-Free. 素食,不含帕拉胶,丙二醇,麸质。