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相关文献及参考

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• Short: II/14a Title: Molecular Constants: Diamagnetic Molecules Author: Demaison, J.; Dubrulle, A.; Hüttner, W.; Tiemann, E. Editor: Hellwege, K.-H.; Hellwege, A.M. Source: Landolt-Börnstein, New Series Volume: II/14a Page: 1-788 Year: 1982 Keyword: organic compounds; molecular constants; spectroscopy; microwave spectroscopy ISBN: 3-540-11365-7 ISBN: 978-3-540-11365-2 Internet Resource: DOI:10.1007/b19966 RefComment: 196 figs., XI
• Short: II/19a Title: Molecular Constants: Rotational, l-type, Centrifugal Distortion and Related Constants of Diamagnetic Diatomic, Linear, and Symmetric Top Molecules Author: Demaison, J.; Hüttner, W.; Tiemann, E.; Wlodarczak, G. Editor: Hüttner, W. Source: Landolt-Börnstein, New Series Volume: II/19a Year: 1992 Keyword: organic compounds; molecular constants; spectroscopy; microwave spectroscopy ISBN: 3-540-54409-7 ISBN: 978-3-540-54409-8 Internet Resource: DOI:10.1007/b42304 RefComment: XI, 143 pages. Abstract: Volume II/19 Molecular Constants mostly from Microwave, Molecular Beam and Sub-Doppler Laser Spectroscopy is a supplement to the earlier volumes II/4, II/6, and II/14. The slight change in the title reflects current trends in the applications of spectroscopic methods. Together, the four volumes collect all the critically evaluated data published up to 1989/90 on constants of free molecules obtained by classical and modern spectroscopy. Volume II/19 is divided into four parts to record the growing number of investigations, especially in the microwave and millimeter wave regions, where modern techniques like Fourier Transform Microwave Spectroscopy have made new objects of interest such as molecular complexes and clusters accessible to study. Subvolume II/19a contains a general introduction and tables of rotational and centrifugal distortion constants of diamagnetic, diatomic, linear and symmetric top molecules, which specify the frequences of the rotational transitions of these types of rotor.

安全信息

TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Human
DOSE/DURATION           : 20 pph
TOXIC EFFECTS :
   Behavioral - headache
   Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
   34ZIAG "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York,
   Academic Press, Inc., 1969  Volume(issue)/page/year: -,67,1969

TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Human
DOSE/DURATION           : 50 pph/5M
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TABIA2 Tabulae Biologicae.  (The Hague, Netherlands)  V.1-22, 1925-63.
   Discontinued.  Volume(issue)/page/year: 3,231,1933

TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Mammal - species unspecified
DOSE/DURATION           : 50 pph/5M
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   AEPPAE Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und
   Pharmakologie.  (Berlin, Ger.) V.110-253, 1925-66.  For publisher
   information, see NSAPCC.  Volume(issue)/page/year: 138,65,1928

其他信息

• 职业标准:TWA 1080 毫克/ 立方米
• 用途二:广泛用于金属焊接和气源切割，同时还可用于医药加工、仪器分析和有机合成等领域
• 爆炸物危险特性:与空气混合明火、受热可爆; 遇铜、汞、银、氯、氟可爆
• 急性毒性:吸入- 哺乳动物 LCL0: 50000 PPM/ 5 分钟
• 类别:有害气体
• 防护措施:本品具有麻醉作用，其麻醉性比单烯烃强得多。高浓度乙炔气爆炸危险性比毒性事故多。乙炔有阻止氧化的作用，使脑缺氧，引起昏迷麻醉，但对生理机能没有影响。吸入高浓度乙炔后，呈现酒醉样兴奋，能引起昏睡、紫绀、瞳孔发直、脉搏不齐等。苏醒后对有关事故的发生经过丧失记忆能力等症状。停止吸入即迅速好转。发生中毒时应迅速脱离中毒现场，进行治疗。此外，应注意乙炔中常含有的磷化氢和砷化氢等杂质引起的中毒。
• 可燃性危险特性:明火、受热可燃; 燃烧产生刺激烟雾
• 毒性分级:低毒
• 上游原料:硫酸 --> 丙酮 --> 氮 --> 无水氯化钙 --> 次氯酸钠 --> 碳化钙 --> 氯化钙(六水)
• 常规方法:本品为气体，一般不以压缩气体形式出售。而是用丙酮吸收成溶液态贮于钢瓶中。
• 下游产品:乙酸 --> 乙烯基乙醚 --> 聚乙烯醇 --> 乙酸乙烯酯 --> 聚氯乙烯 --> 1,4-丁二醇 --> 丁炔二醇 --> 2-甲基-2-丁醇 --> 乙炔环己醇 --> 三甲基乙炔基硅 --> 1,1-二氟乙烷 --> 1-乙炔基-2-甲基戊烯-2-醇 --> 氯乙烯 --> 右旋反式炔戊菊酯 --> 二(三甲基甲硅烷基)乙炔 --> 3-甲基丁炔醇-3 --> 用钍的高络合物合成的聚乙炔 --> 3,5-二甲基-1-己炔-3-醇 --> 乙炔基溴化镁
• 储运特性:库房通风低温干燥; 轻装轻卸; 与氧气、空气、氯气气体钢瓶分开存放
• 方法一:1.电石法　由电石（碳化钙）与水作用制得。2.天然气制乙炔法　预热到600-650℃的原料天然气和氧进入多管式烧嘴板乙炔炉，在1500℃下，甲烷裂解制得8%左右的稀乙炔，再用N-甲基吡咯烷酮提浓制得99%的乙炔成品。
• 灭火剂:雾状水、二氧化碳
• 用途一:用作有机化工原料，也用于工业气焊、气割
• MSDS 信息:乙炔(74-86-2).msds
• 用途三:乙炔在高温下分解为碳和氢，由此可制备乙炔炭黑。一定条件下乙炔聚合生成苯，甲苯，二甲苯，,萘，蒽，苯乙烯，茚等芳烃。通过取代反应和加成反应，可生成一系列极有价值的产品。例如乙炔二聚生成乙烯基乙炔，进而与氯化氢进行加成反应得到氯丁二烯；乙炔直接水合制取乙醛；乙炔与氯化氢进行加成反应而制取氯乙烯；乙炔与乙酸反应制得乙酸乙烯；乙炔与氰化氢反应制取丙烯腈；乙炔与氨反应生成甲基吡啶和2-甲基-5-乙基吡啶；乙炔与甲苯反应生成二甲笨基乙烯，进一步催化剂裂化生成三种甲基苯乙烯的异构体：乙炔与一分子甲醛缩合为丙炔醇，与二分子甲醛缩合为丁炔二醇；乙炔与丙酮进行加成反应可制取甲基炔醇，进而反应生成异戊二烯；乙炔和一氧化碳及其他化合物(如水，醇，硫醇)等反应制取丙烯酸及其衍生物。
• 外观性质:无色无臭气体，工业品有使人不愉快的大蒜气味。
• MOL 文件:74-86-2.mol