Results 201 to 210 of about 10,035 (265)
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Efficient adsorption of iodide from water by chrysotile bundles with wedge-shaped nanopores
Applied Clay Science, 2019Immobilization of iodide (I−) from groundwater and soils is a challenging subject due to the large size and low charge of I−. Clay minerals and (hydr)oxides generally exhibit very low adsorption capacity due to anion exclusion or weak attraction. For the
Wenbin Yu, Huifang Xu, E. Roden, Q. Wan
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The Annals of Occupational Hygiene, 1994
Chrysotile asbestos was used in thousands of commercial products in the past. However, current usage is confined to four principal product categories. These are: asbestos cement; friction materials; roof coatings and cements; and gaskets. Current products, different from several friable products formerly in major use and discontinued some 20 years ago,
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Chrysotile asbestos was used in thousands of commercial products in the past. However, current usage is confined to four principal product categories. These are: asbestos cement; friction materials; roof coatings and cements; and gaskets. Current products, different from several friable products formerly in major use and discontinued some 20 years ago,
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Detection of chrysotile asbestos by using a chrysotile‐binding protein
Biotechnology and Bioengineering, 2007AbstractIn the current studies, we found that the DksA protein from Escherichia coli binds strongly to chrysotile, which is the most commonly used form of asbestos. We developed a convenient colorimetric assay for chrysotile using a fusion of DksA and alkaline phosphatase along with 5‐bromo‐4‐chloro‐3‐indolyl‐phosphate and nitro blue tetrazolium as ...
Akio, Kuroda +4 more
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Chrysotile, tremolite and carcinogenicity
The Annals of Occupational Hygiene, 1997It has been suspected for many years that amphibole fibres in the tremolite series, a low level contaminant of chrysotile asbestos, may contribute disproportionately to the incidence of mesothelioma and perhaps other exposure-related cancers. A cohort of some 11,000 Quebec chrysotile workers, 80% of whom have now died, provided the opportunity to ...
J C, McDonald, A D, McDonald
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Synthesis of Fe‐doped chrysotile and characterization of the resulting chrysotile fibers
Crystal Research and Technology, 2009AbstractThis study describes the formation of Fe‐doped chrysotile fibers with partial and total substitution of Mg by Fe. Syntheses were carried out with various starting mixtures (oxides, pure synthetic forsterite) in an externally heated pressure vessel in controlled hydrothermal conditions: temperature, 270 – 400 °C; pressure, 0.5 – 2 kbar; duration
Bloise A.[1 +6 more
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The Carcinogenicity of Chrysotile Asbestos
Annals of the New York Academy of Sciences, 1991In in vitro test systems, chrysotile is markedly toxic, causes chromosomal aberrations, and is capable of inducing morphological and preneoplastic transformation. In carefully designed animal experiments, chrysotile produces lung cancer and mesothelioma as effectively as do the amphiboles tested.
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Journal of Crystal Growth, 1977
Abstract Short, uniform fibers of chrysotile asbestos exhibit strong interparticle forces parallel to the fiber axis. Wetting a matte of these fibers, and then allowing it to dry, results in the aggregation of the fibers into distinct geometrical shapes.
A.E. Charola, S.Z. Lewin, M.J. Yoder
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Abstract Short, uniform fibers of chrysotile asbestos exhibit strong interparticle forces parallel to the fiber axis. Wetting a matte of these fibers, and then allowing it to dry, results in the aggregation of the fibers into distinct geometrical shapes.
A.E. Charola, S.Z. Lewin, M.J. Yoder
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International Journal of Cancer, 1992
AbstractPathological effects of asbestos are probably dependent on the size and surface properties of the fibers. Surface‐modified chrysotile fibers were injected into the pleural cavity of rats to investigate the potency of the fiber to induce mesothelioma.
A, Van der Meeren +5 more
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AbstractPathological effects of asbestos are probably dependent on the size and surface properties of the fibers. Surface‐modified chrysotile fibers were injected into the pleural cavity of rats to investigate the potency of the fiber to induce mesothelioma.
A, Van der Meeren +5 more
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The porosity of amosite and chrysotile asbestos
American Industrial Hygiene Association Journal, 1976A computer program has been set up in Fortran language to calculate pore size distribution using the Cranston-Inkley method of calculation. Nitrogen adsorption isotherms were determined on amosite and chrysotile asbestos at - 195 degrees C. Size reduction had a major effect on increasing pore volumes of both asbestos materials.
C H, Gorski, L E, Stettler, B L, Lempert
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Chrysotile Asbestos in Urban Air
Nature, 1971THE industrial use of chrysotile asbestos is increasing and the question of whether its concentration in urban air constitutes a hazard has been raised. But measurements of asbestos in air near asbestos factories have proved negative with present analytical methods, so under the sponsorship of the Asbestosis Research Council we are developing a more ...
A L, Rickards, D V, Badami
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