Thioureas as effective catalysts for N-nitrosodimethylamine formation.
نویسندگان
چکیده
منابع مشابه
Ozonation in Water Reuse: Formation and Mitigation of N-~nitrosodimethylamine
.................................................................................................................................. iii ACKNOWLEDGEMENTS ............................................................................................................ v LIST OF TABLES ..........................................................................................................................
متن کاملPotential enhanced N-nitrosodimethylamine (NDMA) formation under water treatment conditions
This study investigates two aspects of NDMA formation reactions: (i) evaluation of the potential effect of formaldehyde on NDMA formation, particularly in reactions of dimethylamine (DMA) and nitrite, and (ii) assessment of potential NDMA formation from a range of polymeric coagulants and flocculants upon exposure to disinfection oxidants. The results show that the presence of formaldehyde can ...
متن کاملSupported bifunctional thioureas as recoverable and reusable catalysts for enantioselective nitro-Michael reactions
The catalytic activity of different supported bifunctional thioureas on sulfonylpolystyrene resins has been studied in the nitro-Michael addition of different nucleophiles to trans-β-nitrostyrene derivatives. The activity of the catalysts depends on the length of the tether linking the chiral thiourea to the polymer. The best results were obtained with the thiourea derived from (L)-valine and 1...
متن کاملMetals as Catalysts for Dioxin Formation
Copper (Cu) is the most potent catalyst for dioxin formation, but Iron (Fe), Zinc (Zn), Potassium (K) and Sodium (Na) have also been found in multiple studies to be correlated with increased dioxin/furan formation. Some studies have also indicated that Manganese (Mn), Magnesium (Mg) and Nickel (Ni) may also serve as catalysts for dioxin formation. Studies have conflicted on whether Aluminum (Al...
متن کاملN-Nitrosodimethylamine (NDMA) as a Drinking Water Contaminant: A Review
N-Nitrosodimethylamine (NDMA) is a member of a family of extremely potent carcinogens, the N-nitrosamines. Until recently, concerns about NDMA mainly focused on the presence of NDMA in food, consumer products, and polluted air. However, current concern focuses on NDMA as a drinking water contaminant resulting from reactions occurring during chlorination or via direct industrial contamination. B...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1979
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.27.1274