偏二氟乙烷,Ethylidene fluoride,在线英语词典,英文翻译,专业英语

1) Ethylidene fluoride

偏二氟乙烷

2) HFC-152a

偏二氟乙烷

3) UDMH

偏二甲肼

Minus Catalytic Kinetics Spectrophotometric Determination of Trace UDMH in Water Samples;

负催化动力学光度法测定水中微量偏二甲肼

Ultraviolet Induced Chlorination Treatment to Treat UDMH Wastewater;

紫外诱导氯化法处理偏二甲肼废水

SELECTION OF UDMH TOLERANT VARIANT LINES OF AN AQUATIC REED;

耐受偏二甲肼的芦苇变异株系的筛选

4) Unsymmetrical dimethyl hydrazine

偏二甲肼

The adsorption,desorption performance of strong acidic ion-exchange fiber(IEF) for unsymmetrical dimethyl hydrazine(UDMH) was investigated.

研究了强酸性离子交换纤维对偏二甲肼的吸附、解吸性能。

The liquid rocket fuel unsymmetrical dimethyl hydrazine(UDMH) often becomes waste due to the over water.

液体火箭燃料偏二甲肼往往因为水分超标而报废 ,本文提出了通过精馏法使超水分偏二甲肼再生为合格产品的方法 ,并对其原理及工艺进行了研究。

[ Objective ] The main accident risk sources and risk factors of unsymmetrical dimethyl hydrazine( UDMH ) in stockpile and operation were analyzed, therefore control measures could be suggested to reduce occurrence of toxic accidents.

[目的]对引起偏二甲肼作业人员急性、慢性中毒的基本原因进行分析,建立中毒风险故障树,提出防制措施。

5) Unsymmetrical dimethylhydrazine

偏二甲肼

Determination of impurities in unsymmetrical dimethylhydrazine by internal standard method;

内标法测定偏二甲肼中的杂质含量

The influences of photocatalytic degradation of unsymmetrical dimethylhydrazine such as temperature,catalyst concentration was also discussed.

采用溶胶-凝胶法制备了纯纳米TiO2对偏二甲肼污水进行光催化降解研究。

The unsymmetrical dimethylhydrazine(UDMH) and initial oxidation products were characterized by gas chromatography-mass spectrometry,and the content of main components were identified.

利用气相色谱/质谱表征偏二甲肼及其初期氧化产物,确定主要氧化产物浓度。

6) unsymmetrical dimethylhydrazine(UDMH)

偏二甲肼

Main oxidation products and their concentration changing characteristics,and the influences of concentration of oxygen and contact metal materials with unsymmetrical dimethylhydrazine(UDMH) on the oxidation speed of UDMH during oxidation process of UDMH are studied by means of GC and MS.

采用气相色谱/质谱联用技术,研究偏二甲肼氧化过程中主要氧化产物的浓度变化规律以及氧气浓度和接触的金属材料对偏二甲肼氧化速率的影响,推测新产生氧化产物的结构。

参考词条

偏二元Hamming图偏二氟乙烯偏二氰乙烯聚偏二氟乙烯偏二甲肼燃料库聚偏二氟乙烯（PVDF）聚偏二氯乙烯城市天然气管道

补充资料：偏二氟乙烷

分子式：C2H4F2
分子量：66.05
CAS号：75-37-6

性质：无色易液化的气体。熔点-117℃，沸点-24.95℃，密度0.9583kg/L，粘度0.219×10-3Pa·s，临界温度113.45℃，临界压力4.54MPa。高温下失掉氟化氢生成氟乙烯。易氯化成一氯二氟乙烷，脱氯化氢即成偏氟乙烯。

制备方法：由电石与水在乙炔发生器中反应生成乙炔，经水洗，次氯酸钠吸收脱除杂质。净化后的乙炔经充分干燥，进入氟化反应器。在磺酰氟存在下，乙炔与氟化氢反应生成粗二氟乙烷。粗二氟乙烷经压缩、分馏，得成品。该品也可由1，1-二氯乙烷与氟化氢反应而得。

用途：制取氟乙烯和偏氟乙烯的重要原料，也用作飞机推进剂、致冷剂。将该品和氟里昂-12混合（重量比为26.2：73.8），可得到具有更大冷冻能力的致冷剂。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。

首页 \| 翻译 \| 影视 \| 论坛 \| 索引偏二分支偏二氯乙烯偏二甲基肼反偏二极管偏二甲肼（UDMH）

1) Ethylidene fluoride 偏二氟乙烷 2) HFC-152a 偏二氟乙烷 3) UDMH 偏二甲肼 1. Minus Catalytic Kinetics Spectrophotometric Determination of Trace UDMH in Water Samples; 负催化动力学光度法测定水中微量偏二甲肼 2. Ultraviolet Induced Chlorination Treatment to Treat UDMH Wastewater; 紫外诱导氯化法处理偏二甲肼废水 3. SELECTION OF UDMH TOLERANT VARIANT LINES OF AN AQUATIC REED; 耐受偏二甲肼的芦苇变异株系的筛选 4) Unsymmetrical dimethyl hydrazine 偏二甲肼 1. The adsorption,desorption performance of strong acidic ion-exchange fiber(IEF) for unsymmetrical dimethyl hydrazine(UDMH) was investigated. 研究了强酸性离子交换纤维对偏二甲肼的吸附、解吸性能。 2. The liquid rocket fuel unsymmetrical dimethyl hydrazine(UDMH) often becomes waste due to the over water. 液体火箭燃料偏二甲肼往往因为水分超标而报废 ,本文提出了通过精馏法使超水分偏二甲肼再生为合格产品的方法 ,并对其原理及工艺进行了研究。 3. [ Objective ] The main accident risk sources and risk factors of unsymmetrical dimethyl hydrazine( UDMH ) in stockpile and operation were analyzed, therefore control measures could be suggested to reduce occurrence of toxic accidents. [目的]对引起偏二甲肼作业人员急性、慢性中毒的基本原因进行分析,建立中毒风险故障树,提出防制措施。 5) Unsymmetrical dimethylhydrazine 偏二甲肼 1. Determination of impurities in unsymmetrical dimethylhydrazine by internal standard method; 内标法测定偏二甲肼中的杂质含量 2. The influences of photocatalytic degradation of unsymmetrical dimethylhydrazine such as temperature,catalyst concentration was also discussed. 采用溶胶-凝胶法制备了纯纳米TiO2对偏二甲肼污水进行光催化降解研究。 3. The unsymmetrical dimethylhydrazine(UDMH) and initial oxidation products were characterized by gas chromatography-mass spectrometry,and the content of main components were identified. 利用气相色谱/质谱表征偏二甲肼及其初期氧化产物,确定主要氧化产物浓度。 6) unsymmetrical dimethylhydrazine(UDMH) 偏二甲肼 1. Main oxidation products and their concentration changing characteristics,and the influences of concentration of oxygen and contact metal materials with unsymmetrical dimethylhydrazine(UDMH) on the oxidation speed of UDMH during oxidation process of UDMH are studied by means of GC and MS. 采用气相色谱/质谱联用技术,研究偏二甲肼氧化过程中主要氧化产物的浓度变化规律以及氧气浓度和接触的金属材料对偏二甲肼氧化速率的影响,推测新产生氧化产物的结构。参考词条偏二元Hamming图偏二氟乙烯偏二氰乙烯聚偏二氟乙烯偏二甲肼燃料库聚偏二氟乙烯（PVDF）聚偏二氯乙烯城市天然气管道补充资料：偏二氟乙烷分子式：C2H4F2 分子量：66.05 CAS号：75-37-6 性质：无色易液化的气体。熔点-117℃，沸点-24.95℃，密度0.9583kg/L，粘度0.219×10-3Pa·s，临界温度113.45℃，临界压力4.54MPa。高温下失掉氟化氢生成氟乙烯。易氯化成一氯二氟乙烷，脱氯化氢即成偏氟乙烯。制备方法：由电石与水在乙炔发生器中反应生成乙炔，经水洗，次氯酸钠吸收脱除杂质。净化后的乙炔经充分干燥，进入氟化反应器。在磺酰氟存在下，乙炔与氟化氢反应生成粗二氟乙烷。粗二氟乙烷经压缩、分馏，得成品。该品也可由1，1-二氯乙烷与氟化氢反应而得。用途：制取氟乙烯和偏氟乙烯的重要原料，也用作飞机推进剂、致冷剂。将该品和氟里昂-12混合（重量比为26.2：73.8），可得到具有更大冷冻能力的致冷剂。说明：补充资料仅用于学习参考，请勿用于其它任何用途。
©2008 dictall.com