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- Keywords ethyl 1;3 oxathiolane;2 mercaptan ethanol;propyl aldehyde;azeotropic dehydration; 乙基-1;3-氧硫杂环戊烷;巯基乙醇;丙醛;共沸脱水;
- propyl aldehyde 丙醛
- Aim:to prepare propyl p-hydroxybenzoate. 目的:制备对羟基苯甲酸丙酯。
- This reaction involves disproportionation of the aldehyde. 这个反应就是醛的歧化作用。
- 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。
- Propyl gallate known as a familiar antioxidant,is widely used in food industry. 没食子酸丙酯作为一种常见的抗氧化剂已被广泛应用于食品行业。
- 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℃。
- OBJECTIVE To synthesize thiamine propyl disulfide,a long-effect VitaminB1. 目的合成长效维生素B1丙硫硫胺。
- The ending -ose signifies a sugar; ald- signifies an aldehyde group. 末尾有一ose表示糖;ald-表示醛类。
- In this paper a new synthesis of Trimethylol propyl triacrylate was introduced. 本文介绍了三羟甲基丙烷三丙烯酸酯新的合成方法。
- 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
- These peaks correspond to side-chain cleavage of the ethyl and propyl groups respectively. 这些峰分别相当于乙基和丙基的侧链开裂。
- 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。
- 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。
- 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 molar absorbance at 350 nm increases if the aldehyde contains a double bond. 如果醛含一个双键,则摩尔光吸收在350nm处增加。
- A monovalent radical,such as ethyl or propyl,having the general formula CnH2n+1. 烷基,烃基一种单价基,如乙烷基和丙基,分子式为CnH2n+
- A colorless, mobile, oily aldehyde, CCl3CHO, a penetrating lung irritant, used to manufacture DDT and chloral hydrate. 氯醛一种无色、流性、油质的醛,CCl3CHO,对肺部有刺激性,用于制造DDT和水合三氯乙醛