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paraldehyde    
副醋; 副醛; 三聚乙醛

副醋; 副醛; 三聚乙醛



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  • Paraldehyde - Wikipedia
    Paraldehyde is the cyclic trimer of acetaldehyde molecules [2] Formally, it is a derivative of 1,3,5-trioxane, with a methyl group substituted for a hydrogen atom at each carbon
  • 三聚乙醛_百度百科
    三聚乙醛(英文名:Paraldehyde)又名三聚醋醛、仲醛、仲乙醛等,是一种 醛 类有机化合物,化学式为C6H12O3,分子量约132 16。 无色透明油状液体,有强烈芳香气味,易挥发,冷却时凝成晶体;密度0 9943g cm3(20℃), 熔点12 6℃,沸点124 4℃,闪点17℃,自燃点237 78℃;溶于水,和多种有机溶剂混溶。 化学性质不稳定,静置时能分解,碱性环境能促使其稳定; [2]遇微量无机酸时,先稳定转向碱,然后分解成 乙醛;与稀盐酸共热,分解生成乙醛; [3]与氧化剂发生强烈反应。 [2] 三聚乙醛在工业上的合成方法是以无机酸(如硫酸等)为催化剂使乙醛发生聚合。
  • Paraldehyde (oral route, injection route, rectal route)
    Paraldehyde is used to treat certain convulsive disorders It also has been used in the treatment of alcoholism and in the treatment of nervous and mental conditions to calm or relax patients who are nervous or tense and to produce sleep
  • Paraldehyde | C6H12O3 | CID 31264 - PubChem
    Paraldehyde is believed to undergo depolymerization to acetaldehyde followed by oxidation by aldehyde dehydrogenase It is thought to ultimately be metabolized to carbon dioxide and water
  • 三聚乙醛 CAS#: 123-63-7 - ChemicalBook
    无色有香味的液体,为三分子乙醛的聚合物。 微溶于热水,能与醇、醚混溶。 三聚乙醛易分解成乙醛,可作为乙醛的稳定形态,便于乙醛的储存和运输。 三聚乙醛在日本约有50%被用于农药领域,其次用于香科、医药、涂料的溶剂和稀释剂等。 用作溶剂,以及用于有机合成,橡胶促进剂和抗氧剂制造等 用途: 农药、香料、医药、涂料的溶剂和稀释剂,橡胶促进剂和抗氧剂制造等。 乙醛在存放过程中能发生聚合生成三聚乙醛、四聚乙醛等。 工业生产则以硫酸等无机酸为催化剂使乙醛发生聚合。 ChemicalBook 致力于为化学行业用户提供三聚乙醛的性质、化学式、分子式、比重、密度,同时也包括三聚乙醛的沸点、熔点、MSDS、用途、作用、毒性、价格、生产厂家、用途、上游原料、下游产品等信息。
  • Paraldehyde_化工百科 - ChemBK
    Paraldehyde - 简介 三聚乙醛。 下面简要介绍一下它的性质、用途、制法和安全信息。 性质: 三聚乙醛是一种无色至淡黄色的结晶性粉末,具有甜味。 它的相对分子质量约为219 27 g mol。 在常温下,三聚乙醛能够溶于水、甲醇、乙醇和醚类溶剂中。 在高温下会分解
  • Paraldehyde - an overview | ScienceDirect Topics
    Paraldehyde is a hypnotic and sedative drug with anticonvulsant effects that is occasionally used to control seizures and status epilepticus that do not respond to conventional treatment It is also used in the treatment of alcohol withdrawal and delirium tremens
  • Paraldehyde | Synthesis, Uses, Odor | Britannica
    paraldehyde, colourless liquid of disagreeable taste and pungent odour used in medicine as a sedative–hypnotic drug and in chemistry in the manufacture of organic chemicals When administered as a medicine, it is largely excreted by the lungs and gives an unpleasant odour to the breath
  • Paraldehyde: Key Safety Patient Guidance - Drugs. com
    Get clear safety guidance for Paraldehyde, including warnings, precautions, when to seek medical assistance, and how to use it correctly
  • Paraldehyde: Uses, Interactions, Mechanism of Action | DrugBank
    Paraldehyde is a central nervous system depressant previously used to control convulsions due to various clinical causes, including tetanus, status epilepticus, and convulsive drugs





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