Studies on Environmentally Sound Technology for Producing Piperonyl Butoxide I. Treatment of Waste Water from Chloromethylation of 5-propyl-1, 3-benzodioxole.
清洁的胡椒基丁醚生产工艺的研究i, 5 -丙基- 1,3 -苯并二氧杂茂的氯甲基化废水的处理。
Methods: it was examined and summarized that composition, technology, quality control and clinical application of the viscoelastic agent hydroxy-propyl-methylcellulose.
方法：对该制剂的处方组成、制备工艺、质量控制及临床应用进行试验和总结。
The preservation of green peppers by using sucrose ester, chitin and propyl-p-hydroxybenzoate was studied, and the nitrite content of green pepper during storage was analyzed.
研究了以蔗糖酯及壳聚糖为涂膜剂，并配合防腐剂对羟基苯甲酸丙酯对青椒进行涂膜保鲜处理，观察青椒在贮藏期间亚硝酸盐含量的变化。
Through chromium sour oxidize propyl alcohol system ester law study in sulphuric acid acetic acid system in, proply acetate and proply propanoate form mechanism, and related influencing factor.
通过铬酸氧化丙醇制酯法，研究在硫酸-乙酸体系中，乙酸丙酯及丙酸丙酯的形成机理，及相关影响因素。
From the electrolysis efficiency of alcohol, propyl alcohol and butyl alcohol can be said that (1) Voltage grads and original concentration have strong bigger influence on the removal rate.
通过考察乙醇、丙醇和正丁醇的微电解效率可以得出：(1)电压梯度和初始浓度对电解结果都有较大的影响。
A new processing method of propyl gallate was advanced in order to decrease the cost of production.
对常见的没食子酸丙酯提出一种尚未见报道的制备方法，可以大幅度地降低生产成本。
Ethyl and propyl gallate were synthesized without water carrying agent.
乙酯和丙酯的合成还摒弃了带水剂。
Under optimum synthetic condition, the yield of propyl ester was 93.5%.
在最佳反应条件下，尼泊金丙酯的产率为93.5%。
Methyl, ethyl, propyl and butyl sorbates were synthesized by esterification of sorbic acid with four kinds of alcohol respectively.
采用直接酯化法，将山梨酸与四种醇反应，合成了山梨酸甲酯、乙酯、丙酯、丁酯。
METHODS the orthogonal design method was used to optimize the formulation. Hydroxy propyl methyl cellulose was used as matrix.
方法采用正交设计以体外溶出为指标，以羟丙基甲基纤维素为阻滞剂，进行处方筛选。
Under this conditions, the yield of propyl benzoate reached 70.5%.
上述条件下，苯甲酸丙酯的产率可达70.5%。
The disequilibrium of isoamylol and normal propyl alcohol directly caused the bitterness in grape wine etc.
葡萄酒中的苦味是由异戊醇与正丙醇失去平衡造成等等。
OBJECTIVE To synthesize thiamine propyl disulfide, a long-effect VitaminB1.
目的合成长效维生素B1丙硫硫胺。
These peaks correspond to side-chain cleavage of the ethyl and propyl groups respectively.
这些峰分别相当于乙基和丙基的侧链开裂。
Normal propyl cinnamylate was synthesized by the esterification of normal propyl alcohol with cinnamic acid in the presence of potassium bisulfate monohydrate.
应用硫酸氢钾催化肉桂酸与正丙醇的酯化反应合成肉桂酸正丙酯。
One of these compounds, pyribambenz-propyl was successfully developed as a potent herbicide for rape field.
丙酯草醚是该类化合物中已成功开发的一种新型高效油菜田除草剂。
Under these conditions, yields of 87.5%, 89.2%and 91.1%can be reached for the ethyl ester, propyl est...
上述条件下，对羟基苯甲酸乙酯的产率为87.5%，对羟基苯甲酸丙酯的产率为89.2%，对羟基苯甲酸丁酯的产率为91.1%。
GREEN propyl lactate is 100% miscible at room temperature with water as well as with most organic solvents.
乐林乳酸丙酯在常温下可溶于水和多种有机溶剂。
The casting process and reverse osmosis (RO) properties of hydroxy-propyl cellulose acetate (HPCA) membrane were studied.
研究了羟丙基醋酸纤维素反渗透膜的制膜工艺和膜性能。
This paper deals with the high effective insecticidal activities of O-ethyl-S-propyl phosphorothiolatex. Synthesis and uses of this kind of compounds are reviewed specifically.
介绍了O- 乙基-S- 正丙基硫代磷酸酯类化合物的高效杀虫活性，重点评述了这类化合物的几种合成方法及应用。
The way using crude material furoic acid and propyl alcohol to synthesize propyl furoate is researched by catalyst stannous oxide. The yield is 77%.
以呋喃甲酸和正丙醇为原料，氧化亚锡为催化剂，合成了呋喃甲酸正丙酯，产率可达77% 。
Under this conditions, the yield of ethyl ester, propyl ester and butyl ester respectively is 87.5%, 89.2% and 91.1%.
上述条件下，尼泊金乙酯的产率为87.5% ，尼泊金丙酯的产率为89.2 % ，尼泊金丁酯的产率为91 .1 %。
Methanol, n-propyl alcohol, acetonitrile and carbon tetrachloride were selected as "molecular probe".
选用甲醇、正丙醇、乙腈、四氯化碳作探针分子。
The Company produces purified Zhong propyl butyl-carbinol and ester product which totally occupies 80% of the international and domestic market share.
公司生产的精制仲辛醇及其酯类产品占国际国内80%的市场份额。
A per-propyl emulsion for coatings, by emulsion polymerization, was prepared from methyl methacrylate (MMA), butyl acrylate and acrylic as raw materials.
本实验以甲基丙烯酸甲酯、丙烯酸丁酯和丙烯酸为主要原料，利用乳液聚合方法，制备了一种涂料用的纯丙乳胶。
A rapid reverse high performance liquid chromatography method based on the iso - propyl alcohol as an agent of pre-derivatization is developed for the determination of 2-acetoxyisobutyryl bromide.
以异丙醇为柱前衍生试剂，建立了反相高效液相色谱法间接测定2-乙酰氧基异丁酰溴的新方法。
Under this conditions, the yield of ethyl esters was 85%, propyl ester 94% and butyl ester 92%.
上述条件下，尼泊金乙酯的产率为85% ，尼泊金丙酯的产率为94 % ，尼泊金丁酯的产率为92 %。
A kind of environment protectional benzene-propyl later paint, which was suit to coat inner wall was prepared.
研制了一种适用于内墙涂装的环保型苯-丙乳胶漆。
INGREDIENTS: Deionized water, hydrogenated poly-decene, methyl p-hydroxybenzoate p-hydroxybenzoic acid propyl, acrylic acid copolymer, mineral oil, daily flavor.
主要成份：去离子水、氢化聚癸烯、对羟基苯甲酸甲酯、对羟基苯甲酸丙酯、丙烯酸共聚物、矿物油、香料。
Ingredients: L-Ascorbic Acid, Carrot Seed, Hyaluronic Acid, Licorice Extract, Sea Urchin Extract, Collagen, Allantoin, Propyl Paraben, D. I Water.
成份：左旋维他命c、胡萝卜素、玻尿酸、甘草萃取液、海胆萃取液、胶原蛋白、尿囊素、保存剂、去离子水。
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