Results 61 to 70 of about 448,504 (204)

ammonium compounds

open access: yes, 2014
Citation: 'ammonium compounds' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00290 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

EASY SYNTHESIS OF 3,4-DIHYDROPYRIMIDIN -2-(1H)-ONES USING PHOSPHATE FERTILIZERS MAP, DAP AND TSP AS EFFICIENT CATALYSTS

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2017
A simple, efficient and green procedure has been developed for the synthesis of dihydropyrimidinones (Products of Biginelli) using phosphate fertilizers (mono-ammonium phosphate (MAP), di-ammonium phosphate (DAP) and triple super phosphate (TSP)) as ...
Sarra SIBOUS   +5 more
doaj   +1 more source

Complex Chromium Ammonium Compounds

open access: yes, 1925
Complex Chromium Ammonium ...
PRIYADARANJAN RAY, PULIN BEHARI SARKAR
openaire   +1 more source

Kinetics of Quaternary Ammonium Salts Synthesis

open access: yesProceedings of the International Conference on Applied Innovations in IT
The aim of this work is to study the synthesis of quaternary ammonium compounds based on olefins and to investigate the structure and properties of the obtained products.
Feruza Makhmudova, Oytura Maksumova
doaj   +1 more source

Synthesis of Methacrylate Monomers with Antibacterial Effects Against S. Mutans

open access: yesMolecules, 2011
A series of polymerizable quaternary ammonium compounds were synthesized with the aim of using them as immobilized antibacterial agents in methacrylate dental composites, and their structures were characterized by FT-IR, 1H-NMR, and 13C-NMR analysis ...
Jingwei He   +4 more
doaj   +1 more source

Microbial ecosystem constructed in water for successful organic hydroponics [PDF]

open access: yes, 2008
Conventional hydroponics systems generally use only chemical fertilisers, not organic ones, since there are no microbial ecosystems present in such systems to mineralise organic compounds to inorganic nutrients.
Hiromi Ohmori   +2 more
core   +1 more source

Transfer of electrophilic NH using convenient sources of ammonia: direct synthesis of N–H sulfoximines from sulfoxides [PDF]

open access: yes, 2016
The transfer of nitrogen atoms is extremely valuable in the preparation of medicinal compounds. Here, a new system for NH transfer is developed to prepare sulfoximines, which are emerging as valuable motifs for drug discovery.
Bentley   +43 more
core   +1 more source

The Pasadena Aerosol Characterization Observatory (PACO): chemical and physical analysis of the Western Los Angeles basin aerosol [PDF]

open access: yes, 2011
The Pasadena Aerosol Characterization Observatory (PACO) represents the first major aerosol characterization experiment centered in the Western/Central Los Angeles Basin.
Chan, M. N.   +7 more
core   +2 more sources

Identifying and Prioritizing Chemicals with Uncertain Burden of Exposure: Opportunities for Biomonitoring and Health-Related Research. [PDF]

open access: yes, 2019
BackgroundThe National Institutes of Health's Environmental influences on Child Health Outcomes (ECHO) initiative aims to understand the impact of environmental factors on childhood disease. Over 40,000 chemicals are approved for commercial use.
(Environmental influences on Child Health Outcomes)   +9 more
core  

The crystal and molecular structure of ammonium titanyl oxalate [PDF]

open access: yes, 1974
Ammonium titanyl oxalate monohydrate, (NH4)2 TiO(C2O4)2·H2O, is monoclinic with cell parameters A = 13.473(2), B = 11.329(1), C = 17.646(2) Å, β = 126.66(1)°. The space group is P21/c with Z = 8, dc = 1.808 g cm−3 and dm = 1.80 g cm−3.
Gellings, P.J.   +2 more
core   +3 more sources

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