نتایج جستجو برای: acetonitrile

تعداد نتایج: 7857  

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2008
Toshiyuki Takamuku Yusuke Honda Kenta Fujii Shigeharu Kittaka

The aggregation of two imidazolium-based ionic liquids, 1-ethly-3-methylimidazolium chloride (EMI(+)Cl(-)) and EMI(+) bis-(trifluoromethanesulfonyl)amide (EMI(+)TFSA(-)), in molecular liquids, water, methanol, acetonitrile, and benzene, has been studied by using the small-angle neutron scattering (SANS) technique. The SANS results have shown that the heterogeneity of EMI(+)Cl(-)-acetonitrile mi...

Abolfazl Semnani, Behzad Shareghi Mohammad Reza Sovizi

The complexation reaction between iodine and 1,10-Diaza-18-Crown-6 (DA18C6) has been studied in acetonitrile by spectrophotometric, biamperometric and conductometric techniques. The results are indicative of the formation of [(CH3CH)nI+.I¯3] from iodine and acetonitrile, and the formation of DA18C6 I+. I¯ from DA18C6 and [(CH...

Journal: :international journal of occupational hygiene 0
nematullah kurd department of occupational health engineering, hamedan university of medical sciences, hamadan, iran. abdulrahman bahrami research centre for health sciences, faculty of health, hamedan university of medical sciences, hamadan, iran. farshid ghorbani-shahna research centre for health sciences, faculty of health, hamedan university of medical sciences, hamadan, iran. mahmoud heidari department of occupational health, faculty of health, guilan university of medical sciences, rasht, iran.

acetonitrile used as a solvent in manufactures and affects to central nervous system from inhalation exposure. the aim of this study was to develop a micro-solid phase extraction method for  the determination of acetonitrile in the air matrix. the sampling was performed with a small diameter fused silica fiber coated with a thin film of stationary phase and was subsequently desorbed and analyze...

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

Journal: :Asian journal of chemical sciences 2023

This paper presents simulation studies on the recovery of Acetonitrile from aqueous waste pharmaceutical processes. The focus is atmospheric distillation in two sequential columns to understand separation feasibility system; first column produces a distillate azeotropic composition, which mixed with fresh stream and fed second column, 99.9% pure residue. effect reflux ratio, reboiler duty flowr...

2013
Sabrina Benmebarek Mhamed Boudraa Sofiane Bouacida Hocine Merazig

In the title compound, C8H6N2O3S, the dihedral angle between the nitro group and the benzene ring is 6.76 (9)°. The bond-angle sum at the S atom is 308.1°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds to generate (010) sheets. The crystal studied was found to be a racemic twin.

Journal: :Chromatography 2021

The retention behaviors of various low-molecular-weight compounds in low-temperature HPLC with an ODS (octadecyl silica) column and liquid CO2 mobile phase containing methanol or acetonitrile as modifiers were investigated. addition methanol/acetonitrile reduced the xanthone, which was dominated by content, independent modifier. Additionally, polycyclic aromatic hydrocarbons (PAHs) methanol/ace...

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