anhydride acetic acid 中文意思是什麼

anhydride acetic acid 解釋
乙酐, 醋酐
  • anhydride : n. 【化學】酐。
  • acetic : adj. 醋的；酸的。
  • acid : adj. 1. 酸味的。2. 【化學】酸的，酸性的。3. 〈比喻〉尖酸刻薄的，易怒的。n. 1. 酸味物。2. 【化學】酸。adv. -ly ,-ness n.
  1. Tao feng changzhou chemical company located in the jiangsu international plastics city, is in changzhou city, the river additives ltd. and jurong city tao reagent production plant product sales window, the major products : toluene, pure benzene, xylene, n - octanol, ethyl acetate, acetic acid small fat, silicone oil, aniline, poly - succinimide, benzene triazole derivatives, isopropanolamine, ethanolamine, alkylation two aniline, scale inhibitor, promoting agents, antioxidants, ppd, defoamer, metal deactivator, hx - 3308 scale and corrosion inhibitor, hx03 - 12 diesel flow improver, parathion octyl - zinc chloride bridge acid, chlorine bridge anhydride, chlorobenzene, double - dicyclopentadiene, norbornene anhydride

    常州濤峰化工有限公司座落在江蘇國際塑化城，是常州市夏溪助劑有限公司和句容市龍濤試劑廠生產的產品的銷售窗口，主要經營產品：甲苯、純苯、二甲苯、辛醇、乙酸乙脂、乙酸丁脂、硅油、二苯胺、雙聚丁二酰亞胺、苯三唑衍生物、異丙醇胺、乙醇胺、烷基二苯胺、防垢劑、促進劑、抗氧劑、降凝劑、消泡劑、金屬鈍化劑、 hx - 3308阻垢緩蝕劑、 hx03 - 12柴油流動改進劑、硫磷丁辛基鋅鹽、氯橋酸、氯橋酸酐、氯苯、雙聚環戊二烯、降冰片烯二酸酐等。
  2. 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

    為尋找羥乙基甲硝唑的替代物，分別採用酸酐法酰氯法或dcc法，將氨基羧酸與羥乙基甲硝唑反應，得到5個親水性不同的單酯或二酯，用ms譜確證了次氨基三乙酸與乙酸酐反應的中間物，並對得到的酯的
  3. The effect of the catalysts, e. g., concd. sulfuric acid, p - toluenesulfonic acid, dodecylbenzenesul - fonic acid on the esterification of starch was studied with cassava starch as the raw material, acetic anhydride as the esterifying agent and acetic acid as the dispersion medium

    摘要以木薯澱粉為原料，用醋酸酐為酯化劑，以乙酸為分散遞質，探索了以濃硫酸、對甲基苯磺酸、十二烷基苯磺酸為催化劑對澱粉醋酯化反應的影響。
  4. Chemical analysis of acetic acid and acetic anhydride. determination of mercury

    醋酸和醋酸酐的化學分析.汞含量的測定
  5. Hydroxyquinol triacetate was prepared from p - benzoquinone by 1, 4 - addition reaction with acetic anhydride and then 6, 7 - dihydroxy coumarin was synthesized from it by hydrolyze and cyclization in concentrated sulfuric acid. then 6, 7 - dimethoxy coumarin was synthesized by methylating from 6, 7 - dihydroxy coumarin with an overall yield of 74. 4 %. the procedure was practical. its structure was confirmed by ir and 1hnmr

    對苯醌與乙酸酐經1 ， 4 -加成生成1 ， 2 ， 4 -苯三酚三乙酸酯，然後與蘋果酸反應經水解、環合反應得6 ， 7 -二羥基香豆素，再經甲基化得到6 ， 7 -二甲氧基香豆素，總收率為74 . 4 % ，整個過程反應條件溫和，操作方便，適合工業生產的要求，對產品結構進行了ir和1hnmr表徵。
  6. A mixture of formic acid and acetic anhydride was found to be effective for the formation of an oxazolone, which was converted to an active ester in situ in the presence of a phenol or an n - hydroxide

    實驗發現甲酸和醋酐混合物對惡唑酮的生成非常有效，惡唑酮在苯酚或n -氫氧化物存在的條件下在原位轉化為酯。
  7. The yields of peracetic acid is studied from two different preparation methods using hydrogen peroxide and acetic acid or acetic anhydride

    摘要比較了用乙酸和乙酸酐分別與過氧化氫反應制備所得的過氧乙酸的濃度。
  8. All of 19 amino acid thiohydantoins were synthesized by using free amino acids as starting materials, acetic anhydride as the carboxyl group activating reagent and tms - itc as the derivatizing reagent. the proiine thiohydantoin was prepared by using ammonium thiocyanate ( n114scn ) as the derivatizing reagent

    本文以l -氨基酸為原料，採用乙酸酐作活化試劑， tms - itc作為偶聯試劑，制備了19種th - aa ，另外th - pro的制備是用nh _ 4scn作為偶聯試劑獲得成功的。
  9. The catalytic activity of iodine in the esterification reaction was studied by synthesis cyclohexyl acetate from acetic anhydride, cyclohexano and acetic acid, cyclohexano

    摘要以單質碘為催化劑，通過乙酸酐、環己醇及乙酸、環己醇為原料合成乙酸環己酯，對碘的催化活性進行了研究。
  10. Experimental results show that that the best process conditions are following : the weight ratio of nitric acid and acetic anhydride is 5 : 1, the current intensity is 500 ma, voltage is 150v, the reaction time is 30 min, then, the graphite compounds are cleaned with water till the ph = 6 - 7 and dried at 60

    實驗表明，硝酸：乙酸酐為1 5 、電流強度為500ma ，電壓為150v ，反應30分鐘后，水洗至中性後於60下烘乾，制得可膨脹石墨，經900高溫處理后，可獲得性能良好的膨脹石墨製品。
  11. Acetylsalicylic acid has been synthesized using salicylic acid and acetic anhydride with microwave radiation catalyzed by aluminum chloride. the effecting factors of this method were also discussed

    摘要以水楊酸和乙酸酐為原料，以無水三氯化鋁作催化劑，微波輻射合成了乙酰水楊酸，並討論了影響反應的因素。
分享友人
分享到 Line

分享到臉書