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- 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。
- Abstract: A method of preparing trimethylolethane from formaldehyde and propionic aldehyde in water was introduced in the presence of the base through cross Cannizzero reaction. 摘 要: 介绍了以甲醛、丙醛为原料,水为反应介质,碱催化进行交叉康尼扎罗反应制备三羟甲基乙烷的方法。
- two tech-nologies,hydroearbylation to produce ethylbenzene and carbonylation to propionic aldehyde and pro-pionic acid, are emphatically evaluated. 结果表明,烃化制乙苯经济性能较差,但技术、市场占优,建议优先考虑;
- propionic aldehyde 丙醛
- A salt or an ester of propionic acid. 丙酸盐丙酸的一种盐或脂
- Keywords hydroformylation;propionic aldehydes;plant fibers;supported Rh catalyst; 醛化;丙醛;植物纤维;负载铑催化剂;
- This reaction involves disproportionation of the aldehyde. 这个反应就是醛的歧化作用。
- 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。
- Subject:To determine aldehyde chemical compound in alcohol quickly. 目的:快速检测酒中醛类化合物.;方法:毛细管气相色谱法。
- This reaction involves disproportionation of the aldehyde . 这个反应就是醛的歧化作用。
- 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。
- The aldehyde solution was then cooled to 0℃ by an external ice bath. 由外面的冰浴将这种醛的溶液冷却到0℃。
- The ending -ose signifies a sugar; ald- signifies an aldehyde group. 末尾有一ose表示糖;ald-表示醛类。
- Any of a class of monosaccharide sugars containing an aldehyde group. 醛糖,醛式糖含有醛类的单糖中任意一种
- The categorical names are often combined, with a six-carbon-atom aldehyde sugar being termed an aldohexose. 它们的命名经常被结合起来,一个六个碳原子的醛糖被称为已醛糖。
- 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 bitterness substances in Luzhou-flavor liquor mainly include tannin, peptide, amino acid, fusel alcohol, aldehyde, and inorganic salt. 浓香型酒中的苦味物质主要有单宁类、多肽、氨基酸、杂醇、醛类和无机盐。
- 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。
- Glyceraldehydes (CHOCH (OH)-CH2OH) A simple monosaccharide bearing an aldehyde group. 甘油醛:分子式为[CHOCH(OH)-CH2OH],它是具醛基的一种简单的单糖。
- 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。