نتایج جستجو برای: carbon disulfide

تعداد نتایج: 299363  

2013
Qiuping Ding Yuqing Lin Guangni Ding Fumin Liao Xiaoyan Sang Yi-Yuan Peng

A new simple and efficient method to construct ring-fused 4-alkyl-4H-3,1-benzothiazine-2-thione derivatives has been developed from carbon disulfide and (E)-3-(2-aminoaryl)acrylates or (E)-3-(2-aminoaryl)acrylonitriles under mild conditions, without the need for a metal catalyst. The newly developed method tolerates a wide range of substrates in moderate to excellent yields. Moreover, this meth...

Journal: :iranian journal of toxicology 0
آتنا رفیعی پور athena rafieepour arak university of medical sciences فرشید قربانی شهنا farshid ghorbani shahna hamedan university of medical sciences زهرا هاشمی zahra hashemi ahvaz university of medical sciences فرهاد قمری farhad ghamari arak university of medical sciences

background: nanotechnology is a new approach that has been lionized in recent years. one of its applications is its consumption as an absorbent. in this study, the single-wall carbon nanotubes (swcnts) were used as an absorbent for sampling benzene in the air. materials and methods: for this study, swcnts manufactured by iran and skc’s activated charcoal were used for sampling benzene vapors. p...

Journal: :Chemical research in toxicology 2009
Mark A Zottola Keith Beigel Sunil-Datta Soni Richard Lawrence

It is known that cyanide is converted to thiocyanate in the presence of the enzyme rhodanese. The enzyme is activated by sulfur transfer from an appropriate sulfur donor. The activated enzyme then binds cyanide and transfers the sulfur atom to cyanide to form thiocyanate. This project began as an exploration of the ability of disulfides to act as sulfur donors in the rhodanese-mediated detoxifi...

Journal: :Environmental Health Perspectives 1998
H Frumkin

Carbon disulfide toxicity is well characterized. The principal target organ is the nervous system, although cardiovascular, reproductive, ophthalmologic, and other effects are also recognized. The neurotoxicity manifests in three ways: encephalopathy, peripheral and cranial nerve dysfunction, and movement abnormalities. This report describes a case of olivopontocerebellar atrophy, a form of mul...

Journal: :Organic letters 2000
Wan Kurchan Barnhurst Kutateladze

[formula: see text] 1,3-Dithianes and -dithiepines are prepared via an experimentally simple and efficient direct transformation of 1,n-alkyl dihalides utilizing carbon disulfide and sodium borohydride.

2013
Zhengsong Lou Hongying Huang Min Li Tongming Shang Changle Chen

Carbon nanoparticles with large surface areas were produced by the reduction of carbon disulfide with metallic lithium at 500 °C. The carbon nanoparticles account for about 80% of the carbon product. The carbon nanoparticles were characterized by X-ray powder diffraction, field emission scanning electron microscopy, transmission electron microscopy, high resolution transmission electron microsc...

Journal: :Optics express 2016
Matthew Reichert Peng Zhao Jennifer M Reed Trenton R Ensley David J Hagan Eric W Van Stryland

We provide an updated comparison of second hyperpolazability of carbon disulfide reported in [Opt. Express23(17), 22224 (2015)10.1364/OE.23.022224Optica3(6), 657 (2016)10.1364/OPTICA.3.000657].

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم پایه 1391

این پژوهش به اکسید اسیون متانول در محیط قلیایی می پردازد. برای این منظور ابتدا ترسیب ذرات نیکل، پلاتین و نیکل – پلاتین بر روی زیر لایه کاغذ کربنی به روش آبکاری به شیوه ی جریان مستقیم استفاده شد. در ادامه مورفولوژی پوشش های ذرات فلزی بر روی کاغذ کربنی از طریق میکروسکوپ الکترونی روبشی بررسی و مطالعه شد. سپس خواص کاتالیستی الکترودها ی حاصل در اکسیداسیون متانول با استفاده از روشهای الکتروشیمیایی هم...

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