Results 221 to 230 of about 5,262 (281)

Fluticasone- vs Budesonide-Based Dual Therapy for COPD.

open access: yesJAMA Netw Open
Feldman WB   +6 more
europepmc   +1 more source

PHOTOLYSIS OF CHLOROBENZENE. PHENYLATION OF CHLOROBENZENE WITH ANOMALOUS ORIENTATION

Chemistry Letters, 1981
Abstract Photolysis of chlorobenzene as neat and in concentrated solutions gives a mixture of o-, m-, and p-chlorobiphenyls in an anomalous ratio, with the highest ratio of the p-isomer. However, on dilution with solvent, the isomer ratio tends to approach the normal ratio as obtained from the usual phenylation of chlorobenzene with the ...
Masanobu Kojima   +2 more
openaire   +1 more source

Dielectric relaxation in solutions chlorobenzene–benzene and chlorobenzene–hexane

Modern Physics Letters B, 2023
This paper presents the results of a study of the dielectric constant of solutions of a polar liquid in a nonpolar solvent: chlorobenzene–benzene, chlorobenzene–hexane. The measurements were carried out at a wavelength [Formula: see text][Formula: see text]cm in the temperature range from [Formula: see text]C to [Formula: see text]C.
openaire   +1 more source

Chlorobenzene‐impaired lindane metabolism and the effect of pretreatment with chlorobenzene, lindane, or chlorobenzene plus lindane

Journal of Toxicology and Environmental Health, 1983
The storage and metabolism of lindane (gamma-HCH) was studied in the female rat after the administration of a hepatotoxic dose of chlorobenzene. Impaired lindane metabolism was observed following a challenge dose of 1.12 g chlorobenzene/kg. The data indicated that a hepatotoxic dose of chlorobenzene (CB) selectively impaired certain pathways, such as ...
R W, Chadwick   +3 more
openaire   +2 more sources

TOXICOKINETICS OF CHLOROBENZENES IN FISH

Environmental Toxicology and Chemistry, 1988
Abstract In acute toxicity tests with guppies (Poecilia reticulata), lethal effects were found for 1,2,3-tri-, 1,2,3,4-tetra-, and pentachlorobenzene if the concentrations in the fish approached 2.0 to 2.5 μmol/g fish. The lethal concentrations were equal for the three test compounds and were independent of the exposure conditions.
Geertjan Van Hoogen, Antoon Opperhuizen
openaire   +1 more source

SORPTION OF CHLOROBENZENES TO MINERALIZING PHYTOPLANKTON

Environmental Toxicology and Chemistry, 1993
Abstract The influence of mineralization of phytoplankton (laboratory Scenedesmus spp.) on the desorption characteristics of 1,2,3,4-tetrachlorobenzene (TeCB) and hexachlorobenzene (HCB) was studied using a purge and trap method. For comparison several field samples, including a sediment, algae at different growth stages, and freeze ...
Koelmans, A.A.   +2 more
openaire   +1 more source

THE SULPHONATION OF CHLOROBENZENE

Canadian Journal of Research, 1948
The rate of heterogeneous sulphonation of chlorobenzene in sulphuric acid solutions of different concentrations has been found to increase with amount and concentration of acid used, and with increase of temperature. No appreciable amount of sulphone was formed under the conditions used.
C. A. Winkler, H. R. Chin-Yee
openaire   +1 more source

Mass analyzed threshold ionization of chlorobenzene and chlorobenzene · Ar1

Chemical Physics Letters, 1997
Mass analyzed threshold ionization (MATI) spectra of the 35Cl and 37Cl isotopomers of chlorobenzene have been recorded via different vibrational S1 states. Most cationic states exhibit only a small isotopic shift of 2–4 cm−1. The strongest isotope effect is observed for the 6a vibrational mode, which differs by about 6 cm−1 for the two isotopomers ...
Gerhard Lembach, Bernhard Brutschy
openaire   +1 more source

Toxicity of chlorobenzene on Pseudomonas sp. strain RHO1, a chlorobenzene-degrading strain

Biodegradation, 1992
Pseudomonas sp. strain RHO1 able to use chloro- and 1,4-dichlorobenzene as growth substrates was tested towards sensitivity against chlorobenzene. Concentrations of chlorobenzene higher than 3.5 mM were found to be toxic to cells independent of pregrowth with chlorobenzene or nutrient broth.
H, Fritz, W, Reineke, E, Schmidt
openaire   +2 more sources

The pharmacokinetics of inhaled chlorobenzene in the rat

Toxicology and Applied Pharmacology, 1983
Male rats were exposed for 8 hr/day to 100, 400, or 700 ppm of [14C]chlorobenzene vapor for either 1 or 5 days for the purpose of examining the dose dependency of parameters indicative of the toxicity process and the effect of repeated exposure. 14C burdens in the blood, liver, kidneys, lungs, and fat were measured at 0, 16, and 48 hr after exposure ...
T M, Sullivan   +3 more
openaire   +2 more sources

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