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- Butadiene vinyl pyridine rubber latex. 丁二烯、乙烯基吡啶經(jīng)乳液共聚制得的膠乳。
- Pyridine is a colorless chemical liquid. 吡啶是一種無(wú)色的化學(xué)液體。
- Cafenstrole is a highly active, low toxicity, broad-spectrum herbicide with triazole carboxamide structure. 苯砜唑是一種高效、低毒、除草譜廣的三唑酰胺類(lèi)除草劑。
- The method of preparation of the key intermediate,4 amino 1 methyl 3 n propylpyrazole 5 carboxamide(6)was improved. 改進(jìn)了重要中間體4氨基1甲基3正丙基吡唑5酰胺(6)的合成工藝。
- S-(+)-2,2-dimethylcyclopropane carboxamide was isolated and purified from reaction mixture with total yield of 43.6%. 產(chǎn)物經(jīng)分離、純化，制備得到S-(+)-2;2-二甲基環(huán)丙烷甲酰胺樣品，總收率達到43.;6%25。
- The fixation of CO2 carried out by these autotrophs, in addition to ATP, requires reduced pyridine nucleotide. 除ATP外，由這些自養生物進(jìn)行的CO2固定，需要還原的吡啶核苷酸。
- The pyridine was chemisorbed at both Lewis and Bronsted sites on the glass surface. 在玻璃表面上，吡定都是化學(xué)地吸收在路易斯和布朗斯特德位置上的。
- Heterocylic aromatics such as pyridine and pyrimidines also give a somewhat similar set of bands in the 1600 cm region. 雜環(huán)芳香族結構類(lèi)如吡啶、嘧啶類(lèi)化合物在1600厘米-1(6.;25微米)區域也有相似的一組譜帶。
- A pyridine derivative, C18H11NO3, occurring especially in cereals, yeast, liver, and fish and serving as a coenzyme in amino acid synthesis. 吡哆醇吡啶的衍生物，c18h11no3，尤其出現于谷類(lèi)，酵母，肝臟和鱗中，作為氨基酸合成作用中的輔酶
- The synthetic methods of glutaraldehyde from pyridine, pyrane, 1,5-pentadiol, or cyclopentene, etc., are introduced. 介紹了戊二醛的合成方法，包括吡啶法、吡喃法、1，5-戊二醇法、環(huán)戊烯氧化法等。
- A semi-empirical LCAO-MO-AM 1 calculation is performed for some substituted pyridine N-oxide. 在LCAO-MO-AM1水平上計算了取代氧化吡啶的氣相質(zhì)子化能.
- The typical K-F reagent has disadvantage of high poisonousness and pyridine malodor. 經(jīng)典K-F試劑缺點(diǎn)是毒性大,且具有吡啶的惡臭。
- The influence of chloride ions on SERS of PABA (p-aminobenzioc acid) and pyridine in Ag sol were discussed. 討論氯離子對銀膠體系中對氨基苯甲酸(PABA)和吡啶(pyr)的表面增強喇曼散射(SERS)效應的影響。
- We studied the recovery of the crude pyridine from coking plant waste water using the direct acid-cleaning method. 對氨水萃取脫酚溶劑（粗苯）直接酸洗回收粗吡啶進(jìn)行了研究。
- Aming the synthetic methods of DMAP,the methad for preration of DMAP from pyridine and thiony chloride was studied. 在合成4二甲氨基吡啶的各種方法中,作者對以吡啶和氯化亞砜為原料的合成方法作了研究。
- Quinoline could be hydrogenated into tetrahydroquinoline, which would be cracked into pyridine, aniline and ammonia. 喹啉加氫生成四氫喹啉，四氫喹啉進(jìn)一步裂化轉化為吡啶、苯胺和氨。
- Pyridine bases are widely used in pharmaceutical, pesticide, aromatics, rubber and dyestuff industry. 吡啶堿廣泛應用于合成醫藥、農藥、香料、橡膠和染料。
- Triisopropyl phosphite was synthsized from phosphorus trichloride and isopropanol using pyridine as an organic base. 采用三氯化磷、異丙醇為原料,吡啶為有機堿合成亞磷酸三異丙酯。
- Structures of pyridine clusters and mechanism of intracluster proton transfer are presented. 給出了吡啶團簇的穩定結構和簇內的質(zhì)子轉移過(guò)程。
- This preparation uses dialkyl imidazole salt, alkyl pyridine salt or caprolactam and fatty acid as reactant. 該方法使用帶有二烷基咪唑鹽、烷基吡啶鹽或者己內酰胺和脂肪酸作為反應物。
