堿性化合物 的英文怎麼說
中文拼音 [jiǎnxìnghuàgěwù]
堿性化合物
英文
alkaline compound-
It is white crystal powder, odorless and slightly bitter ; hardly soluble in ethanol, chloroform, aether and benzene and soluble in solutions whose ph value is less or more than 7
本品在水中易溶,在乙醇、丙酮、氯仿或乙醚中幾乎不溶。本品為兩性化合物,能溶於酸性溶液或堿性溶液。Study on the performance and the modification mechanism of the alkalized acid - polymeric mortar
酸性聚合物堿化的砂漿性能和機理研究Third, it covers the film face ply resisting basicity is strong, resistance is strong to the most average acidity compound
4覆膜面板抗堿性強,對最普通酸性化合物抵抗力強。Exploration and research of miniaturization of property experiment of alkaline - earth metal compunds
堿土金屬化合物性質實驗的微型化研究2, upon heating to their respective melting temperature, all the compounds above went to liquid crystal phase. the typical chiral smectic c phase lined texture and finger print texture, smectic fan texture and broken fan shaped texture, nematic schlieren texture schlieren texture and ball grandle texture, paramorphosis texture can be observed
實驗結果表明:一,化合物2 、 4 、 16 、 17和18均具有熱致液晶性;二,以上化合物加熱至各自的熔點以上都能形成液晶態,在液晶態可以觀察到新的席夫堿型液晶冠醚的合成與表徵手性近晶c相的層線織構和指紋織構。Synthesis and mixed - valence behaviour of biferrocene schiff - base compound
堿化合物的合成和混合價性質( 1 ) for the first time, compositing the chemical compounds of alkaline - earth metal with the adsorption material, 13x molecular sieve, silica gel, and activated alumina to gain a series of composite adsorbents with good performance that higher adsorption capacity and lower regeneration temperature and suitable for adsorption refrigeration systems that can be driven by low - grade thermal energy
首次將堿土金屬化合物及其鹽類與傳統吸附材料13x分子篩、硅膠和活性氧化鋁等復合,制取具有較高吸附量和較低再生溫度的適合於以低溫熱能驅動的吸附製冷過程的一系列優良復合吸附劑。分別在自製的吸附製冷、除濕製冷模擬實驗裝置上,測得該系列復合吸附劑與水和乙醇組成的吸附製冷工質對的吸附製冷性能以及除濕製冷性能均優于傳統吸附劑( 13x ,硅膠和活性炭) 。By far, there is n ' t any synthetic huperzine a whose activity is equal to that of the natural huperzine a. the amount of h. serrata in the whole of nature can hardly meet the demand of the market
但迄今為止,還沒有合成出其活性與天然石杉堿甲相當的化合物。而蛇足石杉的野生資源遠不能滿足市場需求。Experiments are reduced by quantitative structure - activity relationship, then a lot of work, money and time is saved. camptothecin derivatives are a kind of prospective anticancer medication. experiments suggest support vector regression is
然後應用支持向量回歸方法預測了芳香烴化合物生物降解度與喜樹堿化合物抗腫瘤生物活性,得到了較好的結果。Quantitative structure - activity relationship is a method building a statistical model. the model can quantificationally predict structure - activity relationship of molecule, and bioactivity of new molecules can be known. structure of molecule, which is described by parameters in physical chemistry, biochemistry and quantum chemistry, includes functional group, minor structure, molecular fragment, chemical composition
本文提出了一種定量構效關系的處理方法,即應用支持向量回歸方法解決定量構效關系,並且應用這種方法預測了芳香烴化合物生物降解度與喜樹堿化合物抗腫瘤生物活性,取得了比較令人滿意的結果。Non-basic nitrogen-containing series include pyrroles, indoles, carbazoles and benzcarbazoles.
不含堿性氮的化合物包括吡咯、吲哚、咔唑和苯咔唑。The result of numerical taxonomy indicated that there were high phenotypic diversity among the strains isolated from the root nodules of pueraria spp. it can been seen in utilization of carbon and nitrogen sources, antibiotic resistance, resistance to dyes and chemicals, tolerance to acid, acid production, alkali production, nitrate reduction et al. the dendrogram divided all the strains into
數值分類對所有供試菌株進行了131項表型性狀的測定,結果表明,葛藤根瘤菌具有豐富的表型多樣性,表現在利用多種化合物作為唯一碳源、氮源能力,對抗生素、染料和化學藥物的抗性,耐酸性,產酸產堿情況,硝酸還原能力等方面。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 wet parts of this pump are made of full stainless steel material to perform outstanding corrosion resistance to organic acid , organic compound , alkali , neutral solution and a great many of gases , double helix carbon graphite bearing and hardalloy bearing are provided with good abrasion - resisting propertyto ensure the service life of product , it is an optimal pump forhandling corrosive mediums without leakage
功能描述該泵過流部份採用全不銹鋼材料,對有機酸,有機化合物,堿、中性溶液和多種氣體都有良好的耐腐性,雙螺旋槽碳石墨軸承和硬質合金軸套的磨合,具有較強的耐磨性,保證了產品的壽命,是無泄漏輸送腐蝕性介質的理想泵。The wet parts of this pump are made of full stainless steel material to perform outstanding corrosion resistance to organic acid, organic compound, alkali, neutral solution and a great many of gases, double helix carbon graphite bearing and hardalloy bearing are provided with good abrasion - resisting propertyto ensure the service life of product, it is an optimal pump forhandling corrosive mediums without leakage
產品概述:該泵過流部份採用全不銹鋼材料,對有機酸,有機化合物,堿、中性溶液和多種氣體都有良好的耐腐性,雙螺旋槽碳石墨軸承和硬質合金軸套的磨合,具有較強的耐磨性,保證了產品的壽命,是無泄漏輸送腐蝕性介質的理想泵。The main chemicals used for disinfection purposes are halogenated compounds containing chlorine or iodine, alkalis such as sodium hydroxide or ammonium, phenols such as chlorhexidine acetate, aldehydes, such as the glutaraldehydes, ampholytes ( which may behave either as acids or as bases ), surfactants, and gases such as ethylene oxide
在消毒中使用的主要化合物是含有氯或碘的鹵代化合物、氫氧化鈉或銨之類的堿洗滌劑、氯己啶之類的酚類、戊二醛之類的醛、兩性電解質(可作為酸類或基底使用) 、表面活化劑及環氧乙烷之類的氣體。The complexes of schiffbase are not only the carriers of cation on potentiometric sensors but also anticancer drugs. it can induce or cleave dna in the present of cooxidant, and its anticancer effect increase when metal ions complex it
席夫堿化合物可以作為許多陰離子電位型傳感器的載體,同時也是一類具有抗癌活性的化合物,在氧化物存在的條件下,能損傷或者斷裂dna ,與金屬離子結合以後,其抗癌效果增強。Recent advances of chiral metal catalysts for cyclopropanation are reviewed in this paper. the chiral catalysts include metal complexes with schiff base, oxazoline, porphyrin metal, bipyridine, terpyridine, carboxylate, etc
摘要總結了近年來關于環丙烷化反應中各種手性金屬催化劑的研究進展,包括席夫堿、惡唑啉、卟啉、聯吡啶及四吡啶、羧酸酯等類型的手性化合物作為配體的金屬催化劑。A new method for synthesizing 2 - amino - 1 - aryl - 1 - alcohols and their acetylcholinesterase inhibition
烷醇類化合物的新合成法及其乙酰膽堿酯酶抑制活性Preparation of chitosan schiff base copper complexs and their catalytic properties
殼聚糖希夫堿銅配合物的制備及其催化性能分享友人