羥二酸 的英文怎麼說

中文拼音 [qiǎngèrsuān]
羥二酸 英文
oxysuccinic acid
  • : 名詞[化學] (羥基) hydroxyl (group)
  • : Ⅰ數詞(一加一后所得) two Ⅱ形容詞(兩樣) different
  • : 酸構詞成分。
  1. A review on application of monohydrated sodium bisulfate as catalyst in synthesis of ester, such as monocarboxylic esters, dicarboxylic esters, chloroacetates, hydroxycarboxylic esters, aromatic esters and the reusability of sodium bisulfate with

    摘要介紹了一水硫氫鈉在催化合成酯(如一元羧酯、元羧酯、氯乙酯、脂、芳香酯)中的應用及其重復催化性能。
  2. A mixture of catechin and epicatechin, procyanidin b4, 4 - hydroxy - benzoic acid and ethyl gal - late were purified and identified from grape seed procyanidin extract

    得到2種原花青素的單體: ( + ) -兒茶素和( - ) -表兒茶素; 1種原花青素聚體b4 ; 2種其他酚類物質:對基苯甲及沒食子乙酯。
  3. 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

    本論文以開發無機?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無機復合超濾膜作為無機?有機復合納濾膜的基膜;選用聚乙烯醇和聚酰胺為表面功能層材料,分別探討了以基丁和磺基水楊為混合交聯劑,採用浸塗法制備了聚乙烯醇sio _ 2 ? al _ 2o _ 3復合納濾膜;以均苯甲酰氯、哌嗪和胺為單體,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。
  4. ( 2 ) an aminobenthiazole schiff base has been synthesized as a new fluorescence carrier by reacting 2 - aminobenthiazole with p - allyoxybenzoldohyde. the new kind of schiff base can be utilized for preparing an optical sensor, used for determining furazolidone based on the fluorescence quenching. aminobenthiazole schiff base immobilized on a glass plate surface by covalent bonding can circumvent the leakage of the fluorephore from the sensor surface and guarantee a relatively long working lifetime

    ( 3 )用強熒光基團2 -氨基苯並蒽酮與對烯丙氧基苯甲醛合成了另一種新的schiff堿類化合物,與甲基丙烯乙酯、丙烯酰胺、環乙丙烯酯共聚制得光極膜,制備了一種苯並蒽酮schiff堿光化學傳感器,可用於單質碘的測定。
  5. Glycol is oxidized rapidly by it to oxalic and glycolic acids.

    醇迅速地被它氧化,生成草基醋
  6. Manufactures a range of brominated aromatics, phenylhydrazine and hydrazide derivatives, heterocyclic compounds, and a series of other intermediate chemicals. also imports and trades in several organic chemicals

    - d -對基苯甘氨, d -對基苯甘氨鄧鉀鹽,雌莫司汀磷鈉,雌醇氨芥磷鈉的生產廠家。
  7. In order to find replacer for metronidazole and drug selection. some diesters or esters of acids containing nitrogen with metronidazole were designed and synthesized, which have difference in water - solubility. metronidazole was reacted with the corresponding amino or imino multi - carboxylic acid compounds in the presence of acetic anhydride or thionyl chloride or dcc. the intermediate of nitrilotriacetic acid with ac

    為尋找乙基甲硝唑的替代物,分別採用酐法酰氯法或dcc法,將氨基羧乙基甲硝唑反應,得到5個親水性不同的單酯或酯,用ms譜確證了次氨基三乙與乙酐反應的中間物,並對得到的酯的
  8. Abstract : researches on unformaldehyde unironing finishing are summarized in this paper. functions and deficiencies of glyoralamido, water soluble heat reactive polyure thane, bishydroxyethyl - sulfoue, natural high precision chitosan, reactive organosilicon, amyloidosis epoxide, multiple carboxyl acid compound are also analyzed and compared

    文摘:綜述了無甲醛免燙整理方面的研究,分析比較了乙醛-酰胺類整理劑、水溶熱反應性聚氨酯、雙乙基碸、天然高聚物殼聚糖、反應性的有機硅、澱粉改性物、環氧類整理劑、多羧化合物等無甲醛抗皺整理劑的功能以及各種整理劑存在的不足
  9. 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基茴香醚或經丁化作用的基甲苯或其混合物,可與不超逾指明分量的丙基?鹽或辛基?鹽或十烷基?鹽或其混合物同時使用,但添加於無水食油及脂肪維他命油及其濃縮物及部分丙三醇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 。
  10. At the same time, we also can supply taed, thiourea, melamine, aluminum sulphate, titanium dioxide rutile and anatase, rubber accelerator, methyl cellulose, hydroxypropyl methyl cellulose, monoammonium phosphate and other phosphates, 2 - ethyl anthraquinone, etc

    同時還可為客戶提供四乙酰乙胺硫脲三聚氰胺硫鋁鈦白粉橡膠促進劑甲基纖維素乙基甲基纖維素丙基甲基纖維素,磷氫銨2 -乙基蒽醌等十幾種優質化工品。
  11. But it is mainly dependant on the physical parameters such as volume shrinkage. and when phbv crystallized, the hv content will be segregated, it will be accelerated when crystallization temperature is increased

    在結晶過程中, phbv元共晶中hv (基戊)組分會受到排斥,結晶溫度的升高會導致hv組分分凝現象的加劇。
  12. The reaction pathways were proposed as follows : firstly, hydroxylation of aromatic ring, then ring cleavage forming dicarboxylic acid and eventually oxidation to inorganic carbon

    其機理為:首先是苯環基化,然後環破裂生成元羧,最後元羧氧化降解為氧化碳和水。
  13. Studies on synthesis and application of complexes rare - earth with dihydroxamic acids

    酰異配合物的合成及應用研究
  14. Selective catalytic oxidation of mixed xylene by hydroxamic acid cobalt complex co

    鈷配合物催化混合甲苯的選擇性氧化
  15. The synthesis technology of various liquid rubbers with different active group terminated, such as hydroxyl - terminated, carboxyl - terminated, isocyanate - terminated, ami - no - terminated, mercaptan - terminated and various main chains like polybutadiene, polyurethane, polystyrene were reviewed with 23 references

    摘要綜述了端基、端羧基、端異氰酯基、端氨基、端巰基等活性端基,以及聚丁烯、聚氨酯、聚苯乙烯等不同主鏈結構的液體橡膠的合成技術。
  16. Production 1, 2 hydroxy beta 4 - formic acid, a beta consignment sales produced products

    生產1 、 4 -基萘甲、甲萘醌,銷售自產產品。
  17. This approach includes lifestyle modifications, such as dietary changes and smoking cessation and the use of hmg - coa reductase inhibitors ( statins ), which are able to correct the lipid status and to prevent major cardiovascular events independently of the baseline lipidaemic or cardiovascular status

    這些方法包括生活方式的改變,如飲食改變,戒煙以及運用-- -甲基戊單酰輔酶a還原酶抑制劑(他汀類藥物) ,從而糾正脂類情況和預防非依賴性膽固醇血癥的主要心血管事件或心血管狀態。
  18. It has many advantages, such as the particles size is well distributed, and its diameter can be well controlled, etc. because of this virtue, reverse micelle shows broad prospects in the preparation of ferrite nanoparticles. hi this work, the syntheses of mnfe2o4 nanoparticles, cofe2o4 nanoparticles and znfe2o4 nanoparticles are prepared by the reverse micelle method, these preparations employed reverse micelles formed with anionic surfactant bis - ( 2 - ethylhexyl ) sodium sulosuccinate ( aot ), which is considered the most effective surfactant, and another anionic surfactant bis - ( 2 - ethylhexyl ) sodium hydroxy sulosuccinate ( ahot ), which is a new surfactant, and was synthesized by our own research group. we also synthesized znfe2o4 nanoparticles using the cationic surfactant cetyltrimethylammonium bromide ( ctab )

    本文分別採用通常被認為最佳的陰離子表面活性劑? ?( 2 -乙基己基)丁酯磺鈉( aot ) ,和我們課題組自己設計合成的新型陰離子表面活性劑? ?( 2 -乙基己基)基丁酯磺鈉( ahot )所構成的反膠束體系為微反應器,成功制備了mnfe _ 2o _ 4納米粒子、 cofe _ 2o _ 4納米粒子和znfe _ 2o _ 4納米粒子;還以陽離子型表面活性劑? ?十六烷基三甲基溴化銨( ctab )構成的反膠束體系為微反應器,成功制備了znfe _ 2o _ 4納米粒子;並探討了表面活性劑的種類和結構對反膠束法制備鐵氧體納米粒子反應的影響。
  19. Diethyl - 3 - hydroxy glutarate

    基戊
  20. Ghb was classified as a dangerous drug under the dangerous drugs ordinance cap. 134 in october 2001

    零零一年十月被列為受危險藥物條例第134章管制的危險藥物。
分享友人