نتایج جستجو برای: methyl isocyanate
تعداد نتایج: 111342 فیلتر نتایج به سال:
An adapted method for the quantitative determination of isocyanates in air was implemented and validated in-house. The method was based on air sampling using an impinger flask containing di-n-butylamine (DBA) in toluene and a glass fibre filter in series. The DBA derivatives were determined using liquid chromatography and tandem mass spectrometry. Studied isocyanates were isophorone diisocyanat...
Submit Manuscript | http://medcraveonline.com Abbreviations: MIC: Methyl Isocyanate; UCIL: Union Carbide India Ltd; RDX: Research Development Explosive; HAZOP: Hazard Operability Studies; PHA: Preliminary Hazard Analysis; IHA: Interface Hazard Analysis; O&SHA: Operating and Support Hazard Analysis; QRA: Quantitative Risk Analysis; RA: Risk Analysis; MORT: Management Oversight Risk Tree Analysis...
Methyl isocyanate (MIC) was tested for genetic toxicity in a variety of in vitro and in vivo assays. Negative results were obtained in the Salmonella/mammalian microsome assay using five bacterial strains in a preincubation protocol. The Drosophila sex-linked recessive lethal test also gave negative results in studies that involved three routes of administration: inhalation, feeding, and inject...
Reactions of(4S,5R)-1-(3,4-Dimethyl-2-oxo-5-phenylimidazolidine)carbonyl-isocyanate (4) with appropriate Baylis-Hillman adducts 5 gave the corresponding acyl carbamates 6,7 as equimolar diastereomeric mixtures. These mixtures were treated with DABCO, to afford with moderate diastereoselection easily separable [2-(3",4"-dimethyl-2"-oxo-5"-phenylimidazolidine-1-carboxamido)(aryl)methyl]acrylates ...
Sera from 99 subjects exposed to the industrial gas leak in Bhopal on December 2, 1984 were studied along with sera from guinea pigs exposed to methyl isocyanate (MIC) to determine the production of antibodies specific to (MIC). Each of the four guinea pigs injected with the reactive isocyanate produced MIC-specific antibodies in titres of 1:5120 to 1:10240, when tested with MIC-guinea pig albu...
The interstellar detections of isocyanic acid, methyl isocyanate, and very recently also ethyl open the question possible detection vinyl isocyanate in medium. aim this study is to extend laboratory rotational spectrum into millimeter wave region undertake a check for its presence high-mass star forming Sgr B2. was recorded frequency regions 127.5-218 285-330 GHz using Prague spectrometer. spec...
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