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- Carboxylic acid esters are important chemical raw materials. 羧酸酯是重要的化工原料。
- Adipic acid can produce nylon 66 resin and adipic acid ester. 己二酸可生產(chǎn)尼龍66樹(shù)脂，也可生產(chǎn)己二酸酯用作增塑劑、合成潤滑劑。
- Sulfuric acid is main catalyst for the synthesis of carboxylic acid esters. 羧酸酯的合成主要用硫酸作催化劑，但這種催化劑有許多缺點(diǎn)。
- Jervis D A.Long-term Static Protection of Polypropylene Using Fatty Acid Esters. 施英德，李良訓，郭群等.;高速紡聚丙烯微細旦長(cháng)絲的研究
- Organic acid esters can be used industrially as raw materials and solvents for organic synthesis, synthetic perfumes. 有機酸酯類(lèi)化合物在工業(yè)中可用作有機合成的原料、溶劑、合成香料。
- Objective: To study the bioactive constituents, quinic acid esters, from Siphonostegia chinensis. 目的:對中藥北劉寄奴中奎尼酸酯類(lèi)活性成分進(jìn)行化學(xué)研究。
- In this paper,the development of the analysis methods of phthalic acid esters has been introduced in details. 本文詳細介紹了國內外鄰苯二甲酸酯類(lèi)增塑劑檢測方法的研究進(jìn)展。
- In this paper, the development of the analysis methods of phthalic acid esters has been introduced in details. 摘要本文詳細介紹了國內外鄰苯二甲酸酯類(lèi)增塑劑檢測方法的研究進(jìn)展。
- These compounds contain sterols, terpenes, compounds containing nitrogen, long-chain aliphatic acid esters and long-chain aliphatic alcohol, etc. 化合物的類(lèi)型主要涉及到甾醇類(lèi)、萜類(lèi)、含氮化合物類(lèi)、長(cháng)鏈脂肪酸酯和長(cháng)鏈醇類(lèi)。
- Eight phthalic acid esters (DEP, DPrP, BBP, DBP, DAP, DCHP, DHP, DEHP) have been studied in this paper, which are environmental hormone. 本論文選定屬于環(huán)境激素的8種鄰苯二甲酸酯類(lèi)物質(zhì)(DEP、DPrP、BBP、DBP、DAP、DCHP、DHP和DEHP)作為研究對象。
- The GAC-sand biofilter could remove benzoic acid esters, aliphatic acid esters and phenols in the influent of the biofilter effectively. 活性炭、石英砂雙層濾料生物濾柱可較大幅度地去除苯酸酯類(lèi)、脂肪酸酯類(lèi)和酚類(lèi)等有機物。
- Use of zirconic acid esters as catalysts to prepare butyl chloroacetate and benzyl chloroacetate is studied, the yields of reactions are more than 90%. 介紹使用鋯酸酯為催化劑，制備氯乙酸丁酯、氯乙酸芐酯的實(shí)驗，討論了影響反應的因素，該催化反應過(guò)程氯乙酸酯的收率為90%25以上。
- These compounds contain sterols,terpenes,compounds containing nitrogen,long-chain aliphatic acid esters and long-chain aliphatic alcohol,etc. 化合物的類(lèi)型主要涉及到甾醇類(lèi)、萜類(lèi)、含氮化合物類(lèi)、長(cháng)鏈脂肪酸酯和長(cháng)鏈醇類(lèi).
- The synthesis of some oleic acid esters (ethyl oleate,n-octyl oleate,oleyl oleate) catalyzed by lipase in some nonaqueous solvents have been studied. 對幾種非水溶劑中脂肪酶催化合成油酸酯(油酸乙酯、油酸正辛酯和油酸油酯)進(jìn)行了初步考察。
- Dendrimer-bonded silicagel is effective to separate homologous compounds of alcohol,alkyl-substituted benzene,metacrylic acid esters. 對于醇類(lèi),烷基取代苯,丙烯酸酯同系物可以進(jìn)行很好的分離。
- Objective To find out the level of phthalic acid esters(PAEs) pollution of vegetables,fruits, and dried food in the market. 目的了解市售蔬菜水果及干貨食品中酞酸酯的污染狀況。
- Long-chain fatty acid esters of starch have some special properties, such as thermal plasticity, hydrophobicity, emulsifiability and biodegradability. 長(cháng)鏈脂肪酸淀粉酯是一類(lèi)具有特殊的熱塑性、疏水性、乳化勝和可生物降解性的變性淀粉，在食品、紡織、化妝品、醫藥等行業(yè)有著(zhù)廣泛的應用。
- P-Hydroxybenzoic acid esters (parabens) are the most frequently used preservatives causing sensory skin irritation in cosmetics (5). 對羥基苯甲酸酯是會(huì )造成感覺(jué)皮膚刺激的化妝品防腐劑中最常被拿來(lái)使用的。
- The synthesis route and technology of sucrose fatty acid esters are improving with the raising requirements of the people for products. 蔗糖脂肪酸酯的合成路線(xiàn)及工藝隨著(zhù)人們對產(chǎn)品要求的提高不斷改進(jìn)。
- The results of analysis shown that the pollution of Polycyclic Aromatic Hydrocarbons and phthalate acid esters were widesprea... 分析結果表明,重慶段水域多環(huán)芳烴類(lèi)和鄰苯二甲酸酯類(lèi)檢出率比較高,需要予以密切關(guān)注。
