以下MSDS数据仅供参考 CAS:108-24-7 名称:醋酸酐 乙酸酐 acetic anhydride 分子式:C4H6O3 分子量:102.09 有害物成分:乙酸酐 健康危害:吸入后对呼吸道有刺激作用,引起咳嗽、胸痛、呼吸困难。蒸气对眼有刺激性。眼和皮肤直接接触液体可致灼伤。口服灼伤口腔和消化道,出现腹痛、恶心、呕吐和休克等。慢性影响:受本品...
Organocatalytic Michael-type reactions / Wittig reactions of phosphorus ylides and unsaturated ketones · Stereoselective phosphine-catalyzed cycloaddition to form spirocyclopenteneoxindoles · Enantioselective synthesis of pantothenic acid · Preparation of phosphorus ylides from phosphoranes and acetic anhydride ...
Alfa Aesar:醋酐,ACS,97+% Acetic anhydride, ACS, 97+%(108-24-7) 刺激数据:皮肤- 兔子 450 毫克/ 24小时 轻度; 眼睛-兔子 0.25 毫克 重度 方法一:有以下几种工艺路线:1.乙酸裂解法(烯酮法) 以丙酮或乙酸为原料,首先热分解生成中间体乙烯酮,然后将含乙烯酮气体在两个串联的填充塔中用乙酸和乙酐的...
Residue after evaporation: 0.001% Acetic anhydride [(CH3CO)2O]: 0.01% Chloride (Cl): 1 ppm Sulfate (SO4): 1 ppm Heavy metals (as Pb): 0.5 ppm Iron (Fe): 0.2 ppm Substances reducing dichromate: Passes test Substances reducing permanganate: Passes test Titrable base: 0.0004 meq/g. Aceti...
ACETIC PROPIONIC ANHYDRIDE 1.2 Synonyms Acetic propanoic anhydride; ACETIC PROPIONIC ANHYDRID; acetyl propanoate; Propanoic acid, anhydride with acetic acid; 1.3 CAS No. 13080-96-1 1.4 CID 12956798 1.5 Molecular Formula C5H8O3 1.6 Inchi InChI=1S/C5H8O3/c1-3-5(7)8-4(2)6/h3H2,1-2H3 1.7 ...
英文别名FT-0653303 | Piv2O | InChI=1/C10H18O3/c1-9(2,3)7(11)13-8(12)10(4,5)6/h1-6H3 | TRIMETHYL ACETIC ANHYDRIDE | trimethylacetic acid anhydride | Trimethylacetic anhydride | 2,2-dimethylpropanoyl2,2-dimethylpropanoate | EN300-1692861 | MS-20247 | DTXSID60101457 ...
MSDS 合成路线 海关数据 生产用途 上下游产品 基本信息 CAS:4015-58-1 中文名称:Acetic acid (chloroacetic)anhydride 英文名称:Acetic acid (chloroacetic)anhydride 常用名: 英文别名:Acetic acid (chloroacetic)anhydride 分子式: 分子量:0 物理化学性质
[Beilstein 2 H 96, 2 IV 94.] Rapid procedure: Add 5% acetic anhydride, and 2% of CrO3. Reflux and fractionally distil. View all 3.8 Shipping UN2789 Acetic acid, glacial or Acetic acid solution, with .80 % acid, by mass, hazard class: 8; labels: 8-Corrosive material, 3-flammable...
(w/w) of acetic anhydride at 60o, cooling, and filtering off, followed by distillation [Eichelberger & La Mer J Am Chem Soc 55 3633 1933]. Refluxing with acetic anhydride in the presence of 0.2g % of 2-naphthalenesulfonic acid as catalyst has also been used [Orton & Bradfield J Chem...
It is mainly used for the production of ethyl acetate, chloroacetic acid, vinyl acetate, acetic anhydride, acetate, Cellulose acetate, etc. Polyvinyl acetate can be made into films and adhesives, and also the raw material for synthetic fibers. Cellulose acetate can produce rayon and filmstrip. ...