Results 311 to 320 of about 413,147 (353)
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2002
Quaternary ammonium chlorides (QACs) occupy a unique niche in the world of antimicrobial compounds. Rather than being a single, well-defined substance, as is the case for many such active ingredients, QACs are composed of a diverse, eclectic collection of substances that share a common chemical motif, namely a molecular structure containing a positively
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Quaternary ammonium chlorides (QACs) occupy a unique niche in the world of antimicrobial compounds. Rather than being a single, well-defined substance, as is the case for many such active ingredients, QACs are composed of a diverse, eclectic collection of substances that share a common chemical motif, namely a molecular structure containing a positively
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Quaternary Ammonium Compound Toxicity in Chickens
Avian Diseases, 1982Two commercial White Leghorn flocks of 41,000 and 57,000 25-week-old hens experienced death losses of 676 and 1,089 birds in a week. Six birds from each flock were presented for necropsy to the Animal Disease Diagnostic Laboratory at Purdue University with a clinical history of excessive deaths, unsatisfactory production, and dehydration. Gross lesions
A. S. Dhillon +2 more
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Ototoxic Effect of Quaternary Ammonium Compounds
Acta Oto-Laryngologica, 1982In earlier investigations by the author it has been shown that chlorhexidine, when introduced into the middle ear of guinea pigs, caused serious damage to the inner ear. The present investigation was performed in order to study if the quaternary ammonium compounds benzethonium chloride and benzalkonium chloride, frequently used for skin disinfection ...
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Two potential energetic compounds: Ammonium superoxide and ammonium ozonide
Journal of Energetic Materials, 2000Abstract Two proposed ionic compounds, NH4O2 and NH4O3, are discussed in terms of several properties related to energetic performance. These include oxygen content, moles of gas produced and heat released upon decomposition, and specific impulse. The heat release was calculated in each instance using the predicted lattice energy, which was obtained ...
Peter Politzer +3 more
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Quaternary Ammonium Compounds as Preservatives*
Journal of the American Pharmaceutical Association (Scientific ed.), 1947The antiseptics employed were cetyl pyridinium chloride (Ceepryn) and p‐tertiary octylphenoxyethoxyethyl dimethyl benzyl ammonium chloride (Phemerol). Very low concentrations of these antiseptics were found effective in preserving both gelatin and sucrose solutions.
L.F. Tice, A.W. Moore
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Quaternary Ammonium Compounds as Molluscacides [PDF]
Science, 1954 I. Fonseca Ribeiro +2 more
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Quaternary Ammonium Compounds as Mothproofing Agents
Journal of Economic Entomology, 1967Mothproofing studies were conducted with 8 cationic quaternary ammonium compounds applied to woolen doth in constant-temperature baths. In CSMA (Chemical Specialties Manufacturers Association) insect-feeding tests with larvae of the black carpet beetle, Attagenus piceus (Olivier), and the webbing clothes moth, Tineola bisselliella (Hummel), these ...
Joe H. Lang, Roy E. Bry, L. L. McDonald
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Inactivation of the Germicidal Action of Quaternary Ammonium Compounds*
Journal of the American Pharmaceutical Association (Scientific ed.), 1948Abstract The need for means of inactivating the anti‐bacterial activity of quaternary ammonium germicides is summarized. Anionic detergents and soaps fail to inactivate surface‐active cationic detergents. Suramin sodium is the most satisfactory inactivator of any in a group of sulfonates and sulfonic acids tested for this purpose.
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THE TOXICITY OF INTRAVENOUS AMMONIUM COMPOUNDS
The American Journal of the Medical Sciences, 1949Norman W. Karr, Edward L. Hendricks
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