合环反应的条件为：乙醇钠的用量为1.4摩尔当量；
The appropriate reaction conditions of cyclization reaction: NaOEt was 1.4 mole eq.
比较甲醇钠、乙醇钠、异丙醇钠和叔丁醇钠催化活性，叔丁醇钠为最佳的催化剂。
Compared with the activity of sodium methoxide, sodium ethoxide, sodium isopropyl, sodium tert-butoxide, the best base catalyst was sodium tert-butoxide.
实验以水杨醛、丙二酸二乙酯为原料，乙醇钠为催化剂催化合成香豆素- 3 -羧酸乙酯，再经皂化、酸解环合合成香豆素- 3 -羧酸。
Synthesis of coumarin-3-carboxylic acid through sodium ethoxide catalyzed synthesis of coumarin -3-carboxylic acid ethyl ester, followed by saponification, acidolysis cyclization was studied.
通过对其吸收光谱的研究，证明荧光素钠在乙醇溶液中存在多种互变异构体。
By studying the absorption spectra, we have verified the existence of various tautomers of sodium fluorescein in ethanol solution.
选用乙醇和水作为溶剂，实现亚硫酸氢钠对异氰酸酯的良好封闭。
The study realized the good blocking of isocyanate by sodium bisulfate with the mixing solvent of ethanol and water.
以富马酸和乙醇为原料，硫酸氢钠作催化剂合成富马酸二乙酯。
Diethyl fumarate was synthesized with fumaric and alcohol as raw materials and sodium acid sulfate as catalyst.
本文以油酸为原料经过适当的途径合成饱和油酸乙醇酰胺硫酸酯钠，并测定其表面活性性能。
This paper has studied the synthesis of sodium saturated oleic acid ethanolamine sulfate from oleic acid by proper synthetic route and determined Its surface-activity.
结论云南白药乙醇对多柔比星血管外渗具有良好防护作用，碳酸氢钠次之，硫酸镁效果较差。
Conclusion Yunnan Baiyao ethanol cream has excellent protection against doxorubicin vascular leakage. Sodium bicarbonate is not as good as Yunnan Baiyao but better than magnesium sulfate.
目的：建立一种气相色谱法同时测定原料药头孢唑林钠中有机溶剂丙酮，二氯甲烷、乙醇残留量的方法。
Objective: Using the headspace Gas - chromatography methods to measure the assay of residual solvent (acetone, ethylene chloride and ethanol) in Cefazolin sodium.
以乙醇为溶剂，碘化钠为催化剂，由金属钠、对苯二酚和溴丁烷合成了1 ，4 -二丁氧基苯。
With ethyl alcohol as solvent and sodium iodide as catalyst, 1,4-dibutoxybenzene was synthesized from metal sodium, hydroquinone and n-butyl bromide.
研究了聚氧乙烯脂肪酸乙醇酰胺磺基琥珀酸单酯二钠的表面活性。
Surface active properties of disodium polyoxyethylene fatty acid ethanolamide sulfosuccinates were investigated.
产品成分：去离子水、甘油、丁二醇、芦荟提取液、透明质酸、尿囊素、苯氧乙醇、维生素c乙基醚、PEG - 40氢化蓖麻油、EDTA -二钠、香料。
Ingredients: Deionized Water, Glycerin, Butanediol, Aloe Extract, ha, Allantoin, Phenoxyethanol, Ethyl Ascorbic Acid, PEG-40 Hydrogenated Castor Oil, EDTA-Disodium Salt, Essence.
产品成份：去离子水、甘油、丁二醇、金缕梅提取液、黄瓜提取液、透明质酸、尿囊素、PEG - 40氢化蓖麻油、苯氧乙醇、EDTA -二钠、香料。
Ingredients: Deionized Water, Glycerin, Butanediol, Hamamelis Extract, Cucumber Extract, ha, Allantoin, PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, EDTA-Disodium Salt, Essence.
成份：去离子水、甘油、金缕梅提取液、燕麦葡聚糖、尿囊素、透明质酸、苯氧乙醇、PEG - 40氢化蓖麻油、EDTA -二钠、香料。
Ingredients: Deionized Water, Glycerin, Hamamelis Extract, Oat Glucan, Allantoin, ha, Phenoxyethanol, PEG-40 Hydrogenated Castor Oil, EDTA-Disodium Salt, Essence.
产品成分：去离子水、甘油、丁二醇、仙人掌提取液、金缕梅提取液、甘草提取液、透明质酸、尿囊素、苯氧乙醇、PEG - 40氢化蓖麻油、EDTA -二钠、香料。
Ingredients: Deionized Water, Glycerin, Butanediol, Cactus Extract, Hamamelis Extract, Melarrest l, ha, Allantoin, Phenoxyethanol, PEG-40 Hydrogenated Castor Oil, EDTA-Disodium Salt, Essence.
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.
用苯酚和钠得到苯酚钠，苯酚钠和2-氯乙醇得到2-苯氧基乙醇，与氯化锌反应得2，3-二氢苯并呋喃，产率50%。
A mixture of phenol, sodium and 2-chloroethanol forms 2-phenoxyethanol, add zinc chloride, the product is 2,3-dihydrobenzofuran, yield 50%.
用苯酚和钠得到苯酚钠，苯酚钠和2-氯乙醇得到2-苯氧基乙醇，与氯化锌反应得2，3-二氢苯并呋喃，产率50%。
A mixture of phenol, sodium and 2-chloroethanol forms 2-phenoxyethanol, add zinc chloride, the product is 2,3-dihydrobenzofuran, yield 50%.
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