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ethane n.【化學】乙烷。

ethanoic

Gas chromatography - mass spectrometry ( gc - ms ) analyses showed that both potassium permanganate and chlorine could oxidate the organic matters with unsaturated functional groups into those with carboxyl , hydroxyl and aldehyde . and it was further revealed that after preoxidation by potassium permanganate , the sorts of organic matters were reduced remarkably , however , chlorination leaded to increase of the sorts of orgnic matters and brought some chloro - organics such as chlorobenzene , chlorophenol , and trichloro - ethane 通過色譜-質譜聯用( gc - ms )評價分析了高錳酸鉀和氯對有機物結構的改變,高錳酸鉀和氯均將原水中的一些不飽和性有機物氧化分解為一些含氧基團的有機物,如羧酸類、醇類和醛等有機物,但預氯化會在水中出現一些鹵代物,鹵代產物不僅出現在苯環上,而且出現在鏈烴上。

The main information is followed . 1 . a new kind of amino - carboxyl - chelating - agent ( acca ) , 1 , 2 - bis ( 4 - amino phenoxy ) ethane - n , n - n ' , n ' - tetraacetic acid ( 4 - bapta ) was synthesized and characterized by fourier transform infrared spectroscopy , 1h - nuclear magnetic resonance and elements analysis , and its property was also studied 設計并合成了一種新型的氨羧配位劑? ? 4 - bapta ,利用紅外、核茲共振、元素分析等手段對它的結構進行了表征,并對它的性質進行了研究。

The projects that the deep processing and the ramification manufacture for natural pharmaceuticals , active pharmaceutical ingredients , traditional chinese medicine patent prescription , manufacture of million tons ethane and downstream processing products , deep processing and superseded industries for resources - exhausted city , would enjoy favorable policies after being authorized 天然藥、原料藥、中成藥的深加工及其衍生物的生產,百萬噸乙烯及下游深加工產品生產,資源枯竭型城市的精深加工和接續產業等項目,經批準可享受鼓勵類政策。

Through determination of the infinite relative volatility for ethane / ethylene by means of gas stripping method , the ability of the cuprous halide amine to separate ethane / ethylene is evaluated and the factors influencing the stability of the cuprous halide amine such as the basicity of ligand , diluters , ratios are studied 摘要通過測定乙烯乙烷在含氮基團絡合亞銅體系中的無限稀釋相對揮發度,研究了基團堿度、配比數及稀釋劑對吸收劑選擇能力和穩定性的影響。

Abstract : this assay initially discussed the researches and developments of syntheses and reforming of the tetratlycidyletyer of tetraphenol ethane applying to the copper clad laminate and simply explained its principles and functions of uv - ray shield and fluorescence 摘要:本文對四官能環氧樹脂[ 1 , 1 , 2 , 2 ?四(對羥基苯基)乙烷四縮水甘油醚]的合成與改性及在覆銅板中的應用作了初步探討,并對其屏蔽紫外線與產生熒光的機理作用作粗淺的闡述。

Controlled atmosphere storage ( ca for short ) is the method to set up a special storage environment with low temperature , proper content of oxygen , carbon dioxide , ethane and relative humidity , through the ways of manual refrigeration and modifying air contents 氣調貯藏是指同時利用人工制冷制造低溫環境和調節氣體介質成分的方法,建立特定適宜的低溫、氧含量、二氧化碳含量、乙烯含量和相對濕度的貯藏環境條件的技術手段。

Abstract : 1 , 2 - bis ( alkylphenylphosphino ) ethane was synthesized via the reaction between lithium alkylphenylphosphide and 1 , 2 - dichloroethane with tert - phosphines as raw materials . their structures were established by ir , h1nmr spectroscopy 文摘:以叔膦為原料,經堿金屬裂解后與1 , 2 -二氯乙烷反應合成1 , 2 -雙膦乙撐化合物.研究了叔膦化合物的裂解方式,堿金屬膦化物的穩定性及對反應條件的影響.產物的結構由ir譜和h1nmr譜證實

The cloud may be the clue needed in solving a puzzle that has confounded scientists who so far have seen little evidence of a veil of ethane clouds and surface liquids originally thought extensive enough to cover the entire surface of titan with a 300 - meter - deep ocean 該云層將會成為解決長久以來困擾科學家的謎團的線索,科學家們看到了原先設想的覆蓋泰坦整個表面的廣闊乙烷云和300米深海洋的一絲證據。

Previous analyses of titan ' s atmosphere have revealed the presence of methane and other hydrocarbons ; these compounds could rain down on the surface ( believed to be made of frozen water ) and form lakes of liquid methane and ethane 先前的分析顯示,泰坦的大氣含有甲烷和其他碳氫化合物,這些化合物很可能像下雨般落到泰坦地表(一般相信是由結凍的水所構成的) ,因而形成液態甲烷或乙烷的湖泊。

Climacteric the rise in respiration rate , found in the fruits of some species , associated with fruit ripening and senescence . it may be induced artificially by treatment with ethylene ( ethane ) 呼吸躍變(呼吸高峰) :當果實成熟到一定程度時,呼吸速率首先降低然后突然增高,最后又下降,此時果實便進入完全成熟期。這個呼吸高峰便稱為呼吸躍變。用乙烯人工處理可以誘導呼吸躍變。

Vims made the first detection of titan ' s vast polar ethane cloud when it probed titan ' s high northern latitudes on cassini flybys in december 2004 , august 2005 , and september 2005 Vims在卡西尼2004年12月、 2005年8月和2005年9月飛越泰坦北半球高緯度地區期間對巨大的極地乙烷云進行了首次探測。

Growth inhibitor a substance that slows the growth of a plant , for example the plant hormones abscisic acid and ethylene ( ethane ) , which act at very low concentrations 生長抑制劑:能夠減緩植物生長的物質,例如植物激素脫落酸和乙烯(乙烯) 。往往生長抑制劑在非常低的濃度下便可產生作用。

6 . an opo resonant cavity is optimized to get a better lasing performance and the opo is used to perform the cavity enhanced absorption spectroscopy detection of ethane 優化設計了基于周期極化鈮酸鋰( ppln )晶體的光參量振蕩器的諧振腔結構,并用此激光器測量了乙烷的腔內增強吸收光譜。

Zhen ye , yong chen , hui li , gaohong he , maicun deng , preparation of silver doped dense membranes and its ethylene / ethane permeation properties . european polymer journal , submitted 吳雪梅,賀高紅,顧爽,姚平經,化學交聯法在質子交換膜制備中的應用,高分子材料科學與工程,已接受

Instruments on nasa ' s cassini spacecraft have found evidence for seas , likely filled with liquid methane or ethane , in the high northern latitudes of saturn ' s moon titan “卡西尼”飛船上的設備在土星衛星“泰坦”的高北緯度地區發現了似乎是填充著甲烷或乙烷的海洋的證據。

At present , we are proactively chasing business leads at inner mongolia yitai group ' s coal chemical project , tianjin one million ton ethane , tianjin electrical plant , etc . , projects . 目前,我公司正在跟蹤的有內蒙伊泰集團煤化工、天津百萬噸乙烯、天津電廠等建設項目。

Adding more carbon monoxide and hydrogen to the methane produces ethane , a two - carbon molecule , and then the reaction repeats itself , adding a carbon atom each time 再加入更多一氧化碳和氫,會形成含兩個碳的乙烷,這個程序可以重復進行,每次都讓碳鏈增加一個碳原子。

The liquids are probably a combination of methane and ethane , given the conditions on titan and the abundance of methane and ethane gases and clouds in titan ' s atmosphere 按“泰坦”大氣中豐富的甲烷和乙烷氣體以及“泰坦”上的情形,液體可能是甲烷和乙烷的混合物。

And the reduced chemical reaction mechanism of supersonic hc propellant is confirmed . as the production of splitting reaction , ethane is plentiful in the hydrocarbon 確定超高音速飛行器碳氫類推進劑的簡化化學反應機理,乙烯作為裂解產物在小分子烴中含量居多。