Results 141 to 150 of about 63,268 (204)

The Mining Industries, 1899-1939: A Study of Output, Employment, and Productivity [PDF]

Harold Barger, Sam H. Schurr
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Synthesis and Structural Characteristics of Magnesium Oxide, Magnesium Silicate, and Magnesium Oxide/Magnesium Silicate Nanostructures, and Their Luminescence Properties

Synthesis and Structural Characteristics of Magnesium Oxide, Magnesium Silicate, and Magnesium Oxide/Magnesium Silicate Nanostructures, and Their Luminescence Properties
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Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate, sodium magnesium silicate, zirconium silicate, attapulgite, bentonite, Fuller's earth, hectorite, kaolin, lithium magnesium silicate, lithium magnesium sodium silicate, montmorillonite, pyrophyllite, and zeolite.

International journal of toxicology, 2003
This report reviews the safety of Aluminum, Calcium, Lithium Magnesium, Lithium Magnesium Sodium, Magnesium Aluminum, Magnesium, Sodium Magnesium, and Zirconium Silicates, Magnesium Trisilicate, Attapulgite, Bentonite, Fuller's Earth, Hectorite, Kaolin, Montmorillonite, Pyrophyllite, and Zeolite as used in cosmetic formulations.
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Magnesium Silicate

2011
A comprehensive profile of magnesium silicate with 80 references is reported. A full description including nomenclature, formulae, and appearance is included. Methods for magnesium silicate preparation including precipitation, hydrothermal precipitation, and mechanochemical dehydration are reviewed. Physical characteristics, compendia and non-compendia
Iyad, Rashid, Nidal H, Daraghmeh, Mahmoud M, Al Omari, Babur Z, Chowdhry, Stephen A, Leharne, Hamdallah A, Hodali, Adnan A, Badwan   +6 more
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Magnesium silicate in virus transmission

Virology, 1970
Abstract Magnesium trisilicate (Mg2Si3O8·5H2O, here abbreviated as MgSi) functioned as an abrasive in the transmission of cucumber mosaic virus (CMV) and all viruses tested, but as an abrasive it was only about one-sixtieth as effective as Celite. When variable amounts of MgSi were added to inoculum of CMV from cucumber and containing Celite, the ...
C E, Yarwood, E, Hecht-Poinar
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Thermodynamic properties of magnesium silicates

Doklady Physics, 2005
Being a constituent of numerous minerals, magnesium silicates are of extraordinary interest for the Earth and planetary sciences, as well as for cosmology. At the same time, they have many industrial and technological applications, including those associated with the building industry.
N. A. Arutyunyan, A. I. Zaitsev, N. E. Zaitseva, E. Kh. Shakhpazov   +3 more
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Magnesium Silicate Precipitation

CORROSION 1993, 1993
Abstract Studies of magnesium silicate precipitation under alkaline conditions support a bimolecular mechanism rather than co-precipitation/adsorption. The rate of spontaneous nucleation is similar to the rate of particle growth. The activation energy is about 15 KCAL/mole.
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Magnesium and calcium silicate hydrates

Cement and Concrete Research, 2015
The structure and chemistry of magnesium silicate hydrates (M-S-H) is significantly different from calcium silicate hydrates (C-S-H), although both phases are poorly crystalline and have a variable chemical composition. The molar Ca/Si ratio in synthetic C-S-H varies from approximately 0.7 to 1.5 and the Mg/Si ratio in M-S-H from 0.7 to 1.3.
B. Lothenbach, D. Nied, E. L'Hôpital, G. Achiedo, A. Dauzères   +4 more
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Dissolution kinetics of magnesium silicates

Geochimica et Cosmochimica Acta, 1972
Abstract Kinetic dissolution experiments on serpentine, forsterite and enstatite over a wide pH range at 25°C show that there is an initial rapid exchange of surface magnesium ions with hydrogen ions followed by a longer period of hydrogen exchange and extraction of internal magnesium and silicon, with the amount extracted proportional to t 1 2
Robert W Luce, Robert W Bartlett, George A Parks   +2 more
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Disperse Layered Silicates in Magnesium Silicate Rocks

Glass Physics and Chemistry, 2004
This paper reports on the results of experimental investigations aimed at improving the methods and optimizing the physicochemical parameters of the processes of preparing disperse fluorotetrasilicic mica (Na-fluorotetrasilicic mica, Na-fluorotaeniolite) from magnesium silicate rocks (serpentinite, dunite) under pyrogenic conditions from melts.
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