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- A salt or an ester of propionic acid. 丙酸盐丙酸的一种盐或脂
- The group of 20g/kg propionic acid had the best results. 在本次试验中,以20g/kg丙酸添加组的青贮效果最好。
- Propionic acid is product heavily short of in our country. 丙酸是目前国内十分紧缺的一种产品。
- OBJECTIVE To investigate the major metabolites of eugenol ibuprofen ester propionic acid. 目的研究鉴定丁香酚布洛芬酯在大鼠体内的代谢行为。
- The p - fluorophenoxy propionic acid was synthesized by p -fluorophenol and 3 - chloropropanoic acid as row materials and catalized by PEG -400/KI. 采用对氟苯酚和3-氯丙酸为起始原料,用聚乙二醇PEG-400和KI双组分催化剂合成对氟苯氧丙酸。
- The kit has good antiseptic effect with propionic acid at 2.5ml per 350ml artificial diet. 筛选出人工饲料中防腐剂剂量的最佳值为每350毫升饲料中含丙酸2.;5ml。
- Propionic acid is an important chemical raw material, but it is also a material of serious scarcity in China. 丙酸是重要的食品、医学、饲料工业原料,也是目前我国紧缺的防腐剂原材料之一。
- Among these products the production of propanal, propanol and propionic acid remains almost a blank in China. 介绍了世界丙醛系列产品的生产与应用。
- Production techniques and market of propionic aldehyde and propionic acid and propanol are introduced in this paper. 本文综述了丙醛、丙酸、丙醇的工艺技术及市场前景。
- In VFA, aluminum compounds have more serious inhibitation to acetic acid and butyric acid contrasting propionic acid. 试验后通过对厌氧微生物液体培养基VFA组分的测定，发现铝盐对乙酸和丁酸的抑制作用较丙酸更强烈些。
- The concentration of propionic acid finally obtained was 15.19882g/100ml, yield was 74.54%. 最终得到的丙酸水溶液浓度为15.;19882g/100ml，最终收率为74
- A series of polyurethane anionomers were synthesized from isophorone diisocyanate, polyneopentanediol adipate and dimethanol propionic acid (DMPA). 摘要用异佛尔酮二异氰酸酯、聚己二酸新戊二醇酯和二羟甲基丙酸(DMPA)合成了负离子型聚氨酯离聚体。
- The p-fluorophenoxy propionic acid was synthesized by p-fluorophenol and 3-chloropropanoic acid as row materials and transfer catalyzed by TEBA. 以对氟苯酚和3-氯丙酸为起始原料,用苄基三乙基氯化铵作为催化剂,经过相转移催化合成对氟苯氧丙酸。
- The title aqueous polyurethane(APU) has been prepared by using polyether,dimethylol propionic acid and toluene diisocyanate(TDI) and siloxane monomer. 采用有机硅氧烷单体与聚醚、二羟甲基丙酸(DMPA)和甲苯二异氰酸酯(TD I)反应制备水性聚氨酯涂料。
- Propionic acid was prepared with propionaldehyde as material, cobalt acetate as catalyst, calgon as cocataly, by propionaldehyde oxidation. 以丙醛为原料,乙酸钴为催化剂,六偏磷酸钠为助催化剂,将丙醛氧化可制备丙酸。
- OBJECTIVE To synthesize 3,3-bis (dibenzyloxyphosphoryl) propionic acid(5) and 3,3-bis (dibenzyloxyphosphoryl) propanol (6). 摘要目的合成3,3－二（二苄氧膦酰基）丙酸(5)和3,3－二（二苄氧膦酰基）丙醇(6)。
- The vapor association of acetic acid and propionic acid due to dimerization and trimerization has been considered as well. 考虑乙酸与丙酸于气相因结合作用在气相形成二聚体及三聚体。
- The crosslinking polyurethane emulsions were prepared from polyether,stoluene diisocyanate, dimethanol propionic acid, trimethanol propane (TMP), etc. 由聚醚、甲苯二异氰酸酯、二羟甲基丙酸及三羟甲基丙烷（TMP）等为原料制备交联型聚氨酯乳液。
- Improved synthesis of 2-(4-bromomethylphenyl)propionic acid,the key intermediate for loxoprofen sodium,was investigated. 对洛索洛芬钠的关键中间体2-(4-溴甲基苯基)丙酸的合成工艺进行了改进研究。
- The influence of white-rot fungi pretreatment of corncob on vapor-hydrolysis with propionic acid to make cellulose was studied. 探讨了白腐菌预处理对丙酸蒸解法制取纤维素的影响。
