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- By using stannic chloride as the catalyst,p-hydroxybenzoic acid and n-Butyl alcohol reacted to form butyl paraben. 采用四氯化锡为催化剂合成尼泊金丁酯,考察催化剂用量、醇酸物质的量比、反应时间及带水剂等因素对收率的影响。
- Synthesis of Butyl Paraben Catalyzed by Potassium Bisulfate 硫酸氢钾催化合成尼泊金丁酯
- Keywords butyl paraben;stannic chloride;catalysis;synthesis; 尼泊金丁酯;四氯化锡;催化;合成;
- butyl paraben 对-羟基苯甲酸丁酯
- The compound butyl rubber is calendered. 将混制成的丁基橡胶进行精压。
- Ingredients: Water, Cetearyl alcohol, Cetranmmonium methosulphate, Lemon juice, Butyl, Ethyl, Methl and Propyl paraben, Sweet almond oil. 享受更多调制配方的乐趣,为您提供无香料的天然基底材料,为自己制造适合的保养品。
- To bring a butyl group into(a compound). 丁基化将丁基组引入(某化合物)
- Possess of unique butyl quantity alarm system. 特有胶量报警系统。
- Reasonable butyl spreading system and low pressure. 出胶系统合理,压力低。
- 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。
- Method We measured SCHE by Butyl Cholinesterase Sulfide method. 方法利用硫代丁酰胆碱法检测血清胆碱酯酶。
- Kerosene and butyl xanthate were used as collectors in bulk flotation. 混合浮选采用煤油加丁基黄药作为捕收剂。
- An ampoule of amyl nitrite or butyl nitrite used as a stimulant drug. 玻璃瓶用作兴奋剂的亚硝酸戊酯或亚硝酸丁酯的小玻璃药水瓶
- Uses: Performance: anti-corrosion properties see right Ethylparaben, and butyl. 用途: 性能:防腐性能参见对尼泊金乙酯和丁酯。
- Talc, Mica, Silica, Propyl paraben, Methyl paraben, Art-Pearl, Zinc stearate, Vitamin E, Squalane, Iron oxdied black. 滑石,云母,矽石,尼伯金丙酯,尼伯金甲酯,人工珍珠,硬酯酸锌,维生素E,角鲨烷,氧化铁黑。
- Talc, Mica, Silica, Propyl paraben, Methyl paraben, Art-Pearl, Zinc stearate, Vitamin E, Squalane. 滑石,云母,硅石,尼伯金丙酯,尼伯金甲酯,人工珍珠,硬酯酸锌,维生素E,角鲨烷。
- Tale, Mics, Silica, Proply paraben, Methyl paraben, Zine stearate, Vitamin E, Squalane. 滑石,云母,矽石,尼作金丙酯,尼伯金甲酯,人工珍珠,硬酯酸锌,维生素E,角鲨烷。
- Ingredients : Talc, Mica, Silica, Propyl paraben, Methyl paraben, Art-Pearl, Zinc stearate, Vitamin E, Squalane. 主要成分:滑石、云母、硅石、尼伯金丙酯、尼伯金甲酯、人工珍珠、硬酯酸锌、维生素E、角鲨烷。
- Distilled Water Glycerine,Loofah Extract,Camomile,Extract Carbomber 940,Triethanolamine Methyl,Paraben Fragrance. 含天然萃取液,能滋润、保湿、舒爽、洁净,调理皮脂分泌,使肌肤柔软、舒爽。