Tungstogermanic acid as a catalyst for dehydration of alcohol to form ether or alkene is reported.
报道了钨锗酸对醇脱水成醚或成烯的催化反应。
Nonylphenol polyoxyethylene ether was esterified with maleic anhydride and then sulfonated with sodium bisulfite to form nonylphenol polyoxyethylene ether sulfosuccinic acid diester sodium salt.
以壬基酚聚氧乙烯醚为原料，与顺酐酯化再与亚硫酸氢钠磺化，合成了壬基酚聚氧乙烯醚琥珀酸双酯磺酸钠。
The etherification of isoamylenes and methanol to form tert all methyl ether (TAME) by benz-sulfonic acid cation exchange resin as catalyst, was studied.
研究了苯磺酸型树脂催化的异戊烯和甲醇的醚化，考查了温度、醇烯比和空速对反应的影响。
The organic or inorganic acid salts of pullulan aminoalkyl ether can be prepared by reacting pullulan aminoalkyl ether obtained as above with acids in a conventional manner.
普鲁兰氨基烃基醚的有机盐和无机盐可由普鲁兰氨基烃基醚与酸在常规条件下反应获得。
Effect of constitute of catalyst, proportion of mixed acid, reaction temperature, feeding rate and service life of the mixed acid catalyst on synthesis of dimethyl ether were studied.
考察了混酸催化剂、反应温度、原料进料速率和催化剂寿命等对二甲醚收率的影响。
The pullulan aminoalkyl ether according to claim1, wherein the pullulan aminoalkyl ether is in its free amine form or its organic or inorganic acid salt form.
根据权利要求1中的普鲁兰氨基烃基醚，它应为自由胺形式或有机、无机盐形式。
Arresting cough, expectorant and anti-asthmatic effects. Intraperitoneal injection of water, methanol, ether and acid ethanol extracts of hua shu PI possesses anti-cough effect in mice.
止咳、祛痰与平喘作用。小鼠腹腔注射白桦树皮的水、甲醇、乙醚及酸性乙醇的提取物以及乙醚析出物，都有一定的止咳作用。
Sodium bisulfate was used as the catalyst for esterification of ethylene glycol mono-methyl ether and acetic acid to ethylene glycol monomethyl ether acetate.
将硫酸氢钠作为由乙二醇单甲醚和乙酸酯化合成乙二醇单甲醚乙酸酯的催化剂。
Poly (ether ester amide) was prepared from caprolactam and poly (ether ester) which was synthesized from polyethylene glycol and adipic acid.
用聚乙二醇与己二酸反应合成聚醚酯，再用聚醚酯与己内酰胺反应得到聚醚酯酰胺。
The effect of molar ratio of ethylene glycol monomethyl ether and glacial acetic acid and catalyst dosage on esterification are discussed.
考察了乙二醇单甲醚和冰乙酸摩尔比及催化剂用量对酯化率的影响。
Ethanol and tert-amyl alcohol were employed to synthesize tert-amyl ethyl ether in the liquid phase at atmospheric pressure. The strong acid cation exchange resin, NKC-29, was used as catalyst.
用国产NKC-29型强酸性阳离子交换树脂为催化剂，在常压液相条件下用乙醇和叔戊醇为原料合成了乙基叔戊基醚。
When alkali cellulose is reacted with the sodium salt of chloroacetic acid, the sodium salt of the carboxymethyl ether (cellulose-O-CH2-CO2-Na +) is formed.
当碱性纤维素与盐酸的钠盐反应，羧甲基醚钠盐生成。
OBJECT To search method of synthesising Hexamethyl ether of salvianolic acid A benzyl ester as danshensu derivative.
目的：探讨六甲基丹酚酸A苄酯的合成方法。
The method of making benzoic acid by oxidizing the benzyl ether mixture with the acid potassium permanganate solution is researched.
研究了以酸性高锰酸钾氧化苄醚混合物制备苯甲酸的方法。
The finishes for POY mainly contained polyether and polyoxyethylene fatty acid ester, and the finishes for FDY mainly contained polyether, synthetic ester and alkylpolyoxyethylene ether.
POY油剂组成以聚醚、聚氧乙烯脂肪酸酯为主，FDY油剂组成以聚醚、合成酯、聚氧乙烯脂肪醇醚为主。
The effects of catalyst treated methods, catalyst quantity, reaction time, acid-alcohol ratio and catalyst length-of-live are studied in batch synthesis of acetic ether.
考察了催化剂处理方式、醇酸比、催化剂用量、反应时间对合成乙酸乙酯的影响及催化剂重复使用的活性。
Prepolymer from acrylic acid rosin and ethylene diglycidyl ether was prepared by esterification between acrylic acid rosin and ethylene diglycidyl ether.
丙烯酸松香与乙二醇二缩水甘油醚酯化合成环氧树脂预聚体。
In this article, analysis by GC of volatile and corrosive samples containing formic acid, formic ether, methanol and water among which there may be reversible reactions is described.
本文介绍了对易挥发、具腐蚀性且组份之间存在可逆反应的含有甲酸、甲酸甲酯、甲醇和水等样品的GC分析。
Ammonium tristyrylphenol polyoxyethylene ether sulfate was synthesized from tristyrylphenol polyoxyethylene ether and sulfamic acid using urea as catalyst.
以三苯乙烯基苯酚聚氧乙烯醚和氨基磺酸为原料，合成了三苯乙烯基苯酚聚氧乙烯醚硫酸酯铵盐。
Phosphorodithioic acid, mixed O, O-diesters with polyethylene glycol monodecyl ether and polyethylene glycol monooctyl ether;
二硫代磷酸与聚乙烯乙二醇单葵醚和聚乙烯乙二醇单辛醚的O，O-混合二酯；
In the petroleum ether fraction, the amount of fatty acid methyl esters was about 68.42%.
在石油醚萃取部位中脂肪酸甲酯约占总量的68.42%。
Ingredients:Natural Ether Ammonia Acid, Pearl Powder, Hyaluronic Acid, Burdock Extract, Glycerine, Yeast Extract, Amino Acid Blowing Agent, Propyl Paraben, D. I Water.
成份：天然醚氨酸、珍珠粉、玻尿酸、牛蒡萃取液、甘油、酵母萃取液、氨基酸起泡剂、保存剂、去离子水。
The method of making benzoic acid by oxidizing the benzyl ether mixture with the acid potassium permanganate…
研究了以酸性高锰酸钾氧化苄醚混合物制备苯甲酸的方法。
Cassava starch: project of Producing 300,000t Cassava Ethonel, Citric acid and Lysine, Ethene, EO, ether, acetic acid projects and so on.
木薯淀粉产业：30万吨木薯燃料乙醇项目、柠檬酸、赖氨酸项目，酒精乙烯、环氧乙烷、醇醚、醋酸乙酯等项目。
The airdry ability of unsaturated polyester may be improved by using glycidyl allyl ether. The optimum amount of airdry monomer to be used, the stability and acid value of the resin are determined.
论述了以烯丙基(缩水)甘油醚改善不饱和聚酯树脂的气干性，确定了气干性单体的最佳用量及树脂的稳定性酸值。
This 5-ht ISE was prepared using 18-crown-6 as an active component and phosphoric acid tris (2-ethylhexyl ether) as a plastifier.
电极敏感膜的活性成分是18 -冠- 6，增塑剂为磷酸三(2 -乙基己基)酯。
This 5-ht ISE was prepared using 18-crown-6 as an active component and phosphoric acid tris (2-ethylhexyl ether) as a plastifier.
电极敏感膜的活性成分是18 -冠- 6，增塑剂为磷酸三(2 -乙基己基)酯。
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