Results 161 to 170 of about 11,672 (217)

Chemical Reactivity and Absorption of Light

Nature, 1934
IN recent publications1, it has been shown that the absorption of light by a mixture of two reacting substances is greater than the absorptions of the reacting substances considered separately. Thus the absorption in the visible and ultra-violet regions by a mixture of N/400 aqueous iodine and 2N potassium oxalate is much greater than the light ...
N. R. DHAR, P. N. BHARGAVA
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Absorption, biotransformation, and excretion of environmental chemicals

Clinical Toxicology, 1980
Foreign chemicals are continually present in the environment of man and animals. Mammalian systems are in a constant state of balance-the intake compensated for by the outflow. The intake is largely determined by the route of exposure and the chemical characteristics of the environmental compound.
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Chemical absorption into a finite slurry

Chemical Engineering Science, 1979
Abstract Film theory of gas absorption with an instantaneous reaction into an aqueous slurry solution was extended to the case of a finite slurry. The theory was applied to the experiments on the absorption of dilute sulfur dioxide into magnesium hydroxide slurry in a self-induced spray scrubber.
E. Sada, H. Kumazawa, M.A. Butt
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Chemical Journeys: Absorption

2016
For a toxic chemical to be harmful, it must first travel from the environment to a specific target site within the body. Much of this journey happens through the deceptively simple process of diffusion: molecules migrating away from their source. Examples of diffusion are all around us, from salts dissolving into water to fumes dispersing from a ...
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Gas absorption with chemical reaction

2021
This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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Hydrogen sulphide chemical absorption

Chemical Engineering Science, 1964
Abstract The chemistry of the processes of H 2 S absorption in aqueous hydroxide solutions and in aqueous carbonate-bicarbonate buffer solutions is studied, and theoretical equations for the rate of absorption are derived. Experimental results are in good agreement with theory.
G. Astarita, F. Gioia
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Percutaneous Absorption of Volatile Chemicals

1997
Abstract : The purpose of this project was to assess the percutaneous absorption of two volatile organic compounds, chloropentafluorobenzene (CPFB) and dichlorobenzene (DCB) in the isolated perfused porcine skin flap (IPPSF) model. An independent theoretical goal was to begin to develop a mathematical framework to assess vehicle-compound interactions ...
N. A. Monteiro-Riviere, G. L. Qiao, J. D. Brooks, J. E. Riviere   +3 more
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Chemical sound absorption in the ocean

The Journal of the Acoustical Society of America, 2001
Two salts cause significant sound absorption in the ocean, small concentrations of magnesium sulfate ion pairs and boric acid. Below 100 kHz, MgSO4 produces sound absorption ∼30 times greater than that of pure water. For boric acid below 1 kHz, the excess absorption in the Atlantic over pure water is ∼300 times and in the Pacific ∼150 times, the ...
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Reduction of percutaneous absorption of toxic chemicals by dendrimers

Cutaneous and Ocular Toxicology, 2009
Polyamidoamine (PAMAM) dendrimer, a reactive nanoparticle, was investigated as a potential protectant against percutaneous absorption of chemicals. Permeation of furfural (model toxicant) through rat skin from a 1-mg/mL solution was studied in the absence and presence of PAMAM dendrimer, which was applied either as 1, 4, and 6 mg/mL in furfural ...
Hamid R, Moghimi, Reyhaneh, Varshochian, Farzad, Kobarfard, Mohammad, Erfan   +3 more
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Multilayered Dermal Subcompartments for Modeling Chemical Absorption

SAR and QSAR in Environmental Research, 1996
Dermal penetration of chemicals and drugs is of concern to both toxicologists and pharmacologists. Environmental professionals try to limit exposure to chemicals using protective clothing and gloves or barrier creams to trap chemicals. Drug developers try to enhance penetration of chemicals through the skin for medical purposes. Both can use predictive
R L, Bookout, C R, McDaniel, D W, Quinn, J N, McDougal   +3 more
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