醚的性質 的英文怎麼說

中文拼音 [mídexìngzhí]
醚的性質 英文
aethereality
  • 醚 : 名詞[化學] （有機化合物的一類） ether
  • 的 : 4次方是 The fourth power of 2 is direction
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  1. Properties : white light powder, insoluble in water but soluble in ethanol and aether. absorbs moisture from the air. decompounds into stearate and calcium when meeting strong acid

    物理性能：硬脂酸鈣，為白色輕質粉末，不溶於水，溶於熱的乙醇和乙醚，在空氣中吸收水分，遇強酸分解成硬脂酸和相應的鈣鹽。
  2. Synthesis and anion recognition properties of two novel tetraamide calix 4 crowns for optical anion sensor

    氮雜冠醚的合成及對陰離子的光化學傳感性質研究
  3. Extracting oat oil with aceton, petrobenzine, ethano - aceton and n - hexne from oat, determining quality of physical and chemic about acidity value, iodic value, saponification value, unsaponification, colour and melting point, analysis on composition of fatty acid on oat oil

    摘要分別以乙醚、丙酮、丙酮乙醇、正己烷對燕麥進行萃取，對所得油脂進行酸價、碘價、皂化值、不皂化物、色澤、熔點等理化性質的測定，同時對燕麥油的脂肪酸組成進行分析。
  4. Effects of proton irradiation on the tribological properties of phenolphthalein poly ether sulfone

    質子輻照對酚酞聚芳醚碸摩擦學性能的影響
  5. Qualitative analysis of the impurities in phenothrin by gc - ms

    法定性分析苯醚菊酯中的雜質
  6. Synthesis of complexes of transition metal selenates with aminoacids

    氮支冠醚二硫代甲酸根過渡金屬配合物的合成和性質
  7. In order to study the influence factors of aoa of rose flowers, the effects of drying and extraction methods on the aoa of rose flowers were investigated. the results indicated that drying after high - temperature short - time pretreatment was rather effective to maintain their aoa ; the aoa of water extracts was stronger when the temperature was raised from 25 to 100 ; by using orthogonal test, the optimum extraction conditions of rose flowers were : solvent - 75 % ethanol ; ratio of material and solven - 1 : 10 ; extraction times - three times with 24 h at one time, at the room temperature. the extracts obtained by 75 % ethanol were fractionatedly extracted with petroleum, diethyl ether, ethyl acetate and n - butanol in turn, and the various fractions " aoa were analyzed

    為了探討玫瑰花抗氧化活性的影響因子，比較了不同乾燥方法、提取方法對其抗氧化活性的影響，發現：經短時高溫處理后再進行乾燥有利於較好地保持玫瑰花的抗氧化活性；以水作溶劑提取時， 25 100范圍內水提液的抗氧化活性隨著溫度的升高而增強；通過正交實驗篩選得到常溫下玫瑰花抗氧化活性物質的最佳提取方法為： 75乙醇為溶劑，液料比1 ： 10 ，提取3次，每次24h ； 75乙醇提取物依次用石油醚、乙醚、乙酸乙酯、正丁醇等有機溶劑進行兩相分部萃取，發現玫瑰花的抗氧化活性物質主要存在於乙酸乙酯部，說明玫瑰花抗氧化活性主要成分可能是單寧類、黃酮苷類和原花色素類化合物； 4
  8. Aliphatic alcohol ehter alkyl capping series products have many particular properties, such as, low foam, strong lipophilicity, strong acid - base stability, good emulsification, low pour point, little viscosity change, chlorinated stability, heat resistivity and good property of anti - coking

    脂肪族醇醚的烷基封端系列產品具有很多獨特的性質，如泡沫低、新油性強、酸堿穩定強、乳化能力好、流動點低、粘度變化小，氯化穩定性、耐熱性、抗結焦性能力好。
  9. Under that condition the strain can produce the most concentration of the bioactive compounds. the physical and chemical properties of the actibacterial compounds have been studied, the results showed the bioactive substance has heat stable, acidity and weakly alkali stable. it can be dissolved in acid water, chloroform solvent, can not be dissolved in ethyl acetate, petroleum ether, alkali water. the result of thinlayer chromatography showed the bioactive compounds can give off blue and green fluorescence in the uv light. the paper chromatography demonstrate the bioactive substance may be a new construct compounds

    研究表明，該活性物質具有較強的熱穩定性， ph 9的條件下能穩定存在，但ph 12的強堿性條件下活性物質的抗菌活性幾近喪失；活性物質易溶於氯仿、酸性水、不溶於乙酸乙酯、石油醚、堿性水；薄層層析顯示活性物質在紫外光下能發藍綠色熒光等特點；由捷克八溶劑系統紙層析鑒定該抗菌活性物質不屬於四大類抗生素，可能為一新的抗菌活性物質。
  10. A substance extracted from mycelia with benzinum was studied for the first time. five compositions were found : butylated hydroxytoluene, n - hexadcanoic acid, 9, 12 - octadecadienoic acid methyl ester, eicosane and hexacosane. the paper provided scientific basis data for researching mainly biologic characteristics and active compositions of mycelia from phellinus igniarius cultured with solid and liquid culture media

    首次對菌絲體的石油醚提取物進行定性分析，確定該菌絲體中含有二丁基夯基甲苯、棕桐酸、 9 ， 12一十八碳二烯酸甲醋，二十碳烷及二十六碳烷，這五種物質均為在桑黃菌絲體中首次發現。
  11. The volatile organic compounds were extracted from chestnut kernel coating by ether, and determined by gas chromatography - mass spectrometry. there are 29 components, seventeen of which were identified

    摘要板栗仁衣經水蒸汽蒸餾，乙醚萃取揮發性成分，通過氣相色譜與質譜聯用法測定，發現板栗的仁衣中含29個組分，確定了其中17個組分的結構。
  12. We have synthesized two novel crown ether compounds which possess the properties of lyotropic liquid crystals. the one is n - octoxymethyl - 15 - crown - 5, the other is ( 15 - crown - 5 ) methyl stearate. the hydrolysis of pnpp ( p - nitrophenyl pipolinate ) catalysis by n - octoxymethyl - 15 - crown - 5 micellar solution has been studied spectrephoto - meterically

    我們合成了兩種具有溶致液晶性質的冠醚化合物，正辛氧基甲基- 1 ， 4 ， 7 ， 10 ， 13 -五氧雜環十五烷和硬脂酸（ 15 -冠- 5 ）甲酯和3 -正辛氧基- 1 ， 2丙二醇。
  13. After the acet is vaporized, the active substance in water is gotten. and which is vaporized at low temperature. then the crude active substance is purified by column chromatography on sephadex g - 75. after a series of purifications again, we could get some white powder at last. though the active substance is diluted to50 g / ml, the activity is still checkeded - up through phyto phtnora casicileon. the purified active substance is insensitive to heat, resistant to chloroform 、 ethanol and the orhers. in addition, the active substance is sensitive to high ph ( 10 ~ 14 ), but it is not sensitive to low ph ( 1 ~ 5 ). furthermre, when the ph is made to low again, the activity of it ' s comes back

    用蒸餾水對菌體稀釋；加入適量吸附樹脂在150rpm 、 28下振蕩吸附4h ， 80 %的丙酮解吸，過濾解吸液得到活性物質的澄清溶液，旋轉蒸發儀旋轉蒸發去處丙酮，經sephadexg - 75分子篩層析得單一活性峰，收集峰值部分樣品液經冷凍乾燥得到淡褐色粉末，該活性物質用丙酮充分洗滌、甲醇-乙醚重結晶獲得略帶微黃的白色粉末，該活性物質50 g / ml仍可對蘇雲金芽孢桿菌hd - 1產生明顯的抑制作用。
  14. Liquid crystal crown ether is a kind of compound, which remains the liquid crystal property when the crown ether ring link or insert to the molecular structure of liquid crystalline compound. it is in fine - order structure and unite its function and character into together. so it is a kind of novel compound with the characterstic of liquid crystal and the selecting of the crown ether

    液晶冠醚是一類將冠醚環插入或連接在具有液晶性的分子結構中並保持液晶性質的化合物，這種化合物是一類結構有序且功能特性一體化的體系，它是一類既有液晶特性又有冠醚選擇配位功能的新型化合物，它們在分子結構、性能和應用功能等方面都與通常的液晶化合物不同。
  15. The effects of pes concentration and temperature in casting solution on the structure and properties on pes ultrafiltration membranes are studied

    研究了鑄膜液中聚醚碸的質量分數和溫度對膜結構與性能的影響。
  16. In this articles, we research the all - solid state electrochromic device which ec layer is wo3 doped with tio2 moo3 cro3 peo, ce layer is ceo2 doped with tio2, and ic layer is epichlorohydrin crosslinked polyethenoxy ether gel macro - molecule electrolyte. in this articles, we research the color change, responding time, electrochemistry performance, preserving time, and lay importance on the research in the circle times, crystal structure and the uniformity, stability and suitable viscosity of precursors

    本文首次研究了wo _ 3以為主體， tio _ 2 、 moo _ 3 、 cro _ 3 、 peo摻雜的電致變色層的性能，以tio _ 2為主體的對電極變色層的性能和以liclo _ 4 -環氧氯丙烷交聯聚氧乙烯醚為高分子固體電解質的全固態電致變色器件。
  17. Soil quality - gas chromatographic quantitative determination of volatile aromatic and halogenated hydrocarbons and selected ethers - static headspace method iso 22155 : 2005

    土壤質量.揮發性芳烴和鹵化烴與選定醚的氣相色譜定量
  18. Soil quality - gas chromatographic quantitative determination of volatile aromatic and halogenated hydrocarbons and selected ethers - static headspace method

    土壤質量.揮發性芳烴和鹵化烴與選定醚的氣相色譜定量測定.靜態液上法
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