無水甲醇 的英文怎麼說

中文拼音 [shuǐjiǎchún]
無水甲醇 英文
absolute methanol
  • : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
  • : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
  • : Ⅰ名詞1 (天乾的第一位) the first of the ten heavenly stems2 (爬行動物和節肢動物身上的硬殼) she...
  • : Ⅰ名詞1 [書面語] (含酒精多的酒) mellow wine; good wine2 [化學] (有機化合物的一大類 含羥基的烴化...
  • 無水 : [化學] anhydrous
  • 甲醇 : [有機化學] carbinol; methyl alcohol; methanol; wood alcohol; columbian spirits; methyl propyl carbinol
  1. The present work indicates the organic nf membranes and the inorganic nf membranes all have shortages, so develop composite nf membranes that have low cost, mechanically strong and thermally / chemically - resistant, easy to cleanout and good performances is a very important task. in this paper, the preparation of inorganic - organic composite nf membranes were presented. this composite comprise a porous sio2 / al2o3 support substrate, the pore diameters of which ranging from 10 to 15 nm, this inorganic support substrate having a polymer membrane which comprises an polyvinyl alcohol ( pva ) or polyamide ( pa ) densely deposited on at least one of the face surfaces thereof, the structural porosity of such pva and pa membrane ranging from 3 to 5 nm

    本論文以開發機?有機復合納濾膜為出發點,首先在al _ 2o _ 3多孔微濾膜上利用溶膠?凝膠法制備sio _ 2 al _ 2o _ 3機復合超濾膜作為機?有機復合納濾膜的基膜;選用聚乙烯和聚酰胺為表面功能層材料,分別探討了以羥基丁二酸和磺基楊酸為混合交聯劑,採用浸塗法制備了聚乙烯sio _ 2 ? al _ 2o _ 3復合納濾膜;以均苯二酰氯、哌嗪和二胺為單體,採用界面聚合法制備了聚酰胺sio _ 2 ? al _ 2o _ 3復合納濾膜,並對影響膜性能的諸多因素進行系統研究。
  2. A white solid that is in organic solvents such as ethanol and acetone and the like, easy to be deliquescent : its solution is colorless transparent liquid, primarily utilized as fungicides additives to prevent the growth of microbe and algae

    0 . 01物化性質:色或微帶黃色結晶或結晶興粉末,具吸濕性,易溶於和丙酮,熱至160以上分解。
  3. We specialize in chemical material s, including 1, 4 - butanediol, tetrahydrofuran, ptmeg, polyvinyl alcohol series, sodium diacetate, glacial acetic acid, dibutyl phthalate, methyl acetate, ethyl acetate, n - butyl acetate, - butyrolactone, polyvinyl acetate emulsion series, pentaerythritol, redispersible emulsion, anhydrous sodium acetate and methanol

    公司主要經營的產品有: 1 , 4 -丁二,四氫呋喃, ptmeg ,聚乙烯系列,雙乙酸鈉,冰醋酸,鄰苯二酸二丁酯,醋酸酯,醋酸乙酯,醋酸丁酯, -丁內酯,白乳膠系列,季戊四,可再分散性乳膠,醋酸鈉,
  4. A butylated hydroxyanisole or butylated hydroxytoluene or mixtures thereof within the limits specified in part ii of this schedule may be used in conjunction with propyl gallate or octyl gallate or dodecyl gallate or mixture thereof within the limits specified, provided that the total amount of antioxidant shall not exceed, in the case of anhydrous oils and fats and vitamin oils and concentrates, and partial glycerol esters, 300 parts per million, in the case of butter for manufacturing purposes, 240 parts per million and in the case of essential oils and isolates from the concentrates of essential oils, 1000 parts per million

    A不超逾本附表第ii部所指明分量的經丁化作用的羥基茴香醚或經丁化作用的羥基苯或其混合物,可與不超逾指明分量的丙基?酸鹽或辛基?酸鹽或十二烷基?酸鹽或其混合物同時使用,但添加於食油及脂肪維他命油及其濃縮物及部分丙三酯的抗氧化劑總分量,不得超逾百萬分之300 ,添加於作製造用途的牛油的抗氧化劑總分量,不得超逾百萬分之240 ,而添加於香精油及香精油濃縮物的分離物的抗氧化劑總分量,則不得超逾百萬分之1000 。
  5. N sources ( including organic and inorganic n tested ) and c sources tested could restrain methane oxidation. cellulose inhibited methane oxidation most weakly while the high concentration of methanol and glucose did dramatically, but the proper concentration of methanol could stimulate soil methane oxidation sharply. in the middle process of methane oxidation, addition of glucose could restrain methane oxidation shortly but the inhibition could be relieved about 5 days later when supplied again with enough oxygen

    土壤微生物是烷氧化的主要生物類群,含量對土壤烷氧化活性有明顯影響,過高或過低對烷氧化均具有抑制作用;氮源(包括有機和機氮源)對烷氧化均有抑制作用;不同碳源對烷氧化的影響各異,纖維素對烷氧化抑制作用最小,而高濃度的、葡萄糖則對烷氧化具有強烈抑制作用;而適當濃度的可極大促進土壤對烷的氧化:在烷氧化過程中加入葡萄糖能迅速抑制烷氧化;在加入葡萄糖的同時保持瓶中充足的氧氣,則這種抑制作用可以在重新培養一定時間后得到解除。
  6. Solubility soluble in hot water, acetone, 2 - j ketone, n, n - dimethy formamide, ethyl acetoacetate, cyclohexanoneit can recat with ethanol anhydrous

    溶解性:溶於熱及丙酮酮二酰胺乙酸乙酯環乙酮溶於並發生反應
  7. Under the conditions of operation pressure about 0. 5mpa and feed temperature 25 c, the rejection performance of nacl feed solution ( 500ppm ), is about 35 %, while the flux is about 45ml cm - 2 h - 1. the pa membranes were prepared by interfacial polymerization, usingl, 3, 5 - benzenetricarbonyltrichlori2, 4 - dichloroterephthalaldehyd e, 1, 3 - phenylenediamine as monomers

    研究結果表明, 5102 / a12o :機復合超濾膜的研製原料正硅酸乙酷、乙、 n , n一二酸胺( dcca )和hno3之間的配比、塗膜過程、熱處理溫度等直接影響著溶膠的質量和膜的性能。
  8. Catalytic dehydrogenation of methanol to formaldehyde a review

    催化脫氫制醛催化體系研究進展
  9. The influence of retarder on the seaing time and ultimate strength of gypsum plaster was investigated in this paper. the experimental results indicate that the effect of single retarder, such as citric acid, is inferior to that of composite retarder which was made of blending citric acid with a few portland cement ( about 0. 5 ?, by weight ). the effect of different water - retention agents, such as polyvinyl alcohol ( pva ), carboxymethyl cellulose ( cmc ), and na - bentonite, etc., was also studied, and the results demonstrate that by means of adding organic and inorganic water - retention agent simultaneously the water - retention of plastering slurry can obviously be improved. the optimal mix proportion of gypsum plaster suitable to finish coat of walls and ceilings of buildings has been got by use of factorial experiment with orthogonal array accounting for interactions between factors each other

    研究了分別以檸檬酸、檸檬酸與普通硅酸鹽泥復合物作緩凝劑,調節粉刷石膏的凝結時間,並對比2種緩凝體系對石膏抗折、抗壓強度的影響.比較不同保劑(聚乙烯、羧基纖維素)以及相同量的保劑在不同工藝流程下保效果上的區別.探索了有機保劑和機保劑對粉刷石膏的保性的影響.結果表明,檸檬酸與普通硅酸鹽泥的復合緩凝劑比單純的檸檬酸更能有效地延緩建築石膏的凝結,同時建築石膏的抗折、抗壓強度降低幅度減小
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