The heterogeneous catalyst plays an important role in the production of biodiesel at industrial level. In present work, utilization wollastonite as a is attempted to explore its non-biomedical application. Wollastonite was synthesized by using auto combustion method and L-alanine used fuel for combustion. X-ray diffraction pattern reveals phase purity wollastonite. Fourier transform infrared sp...

1 Buerger, M. J., "The arrangement of atoms in the wollastonite group of metasilicates," these PROCEEDINGS, 42, 113-116 (1956). 2Buerger, M. J., "The determination of the crystal structure of pectolite, Ca2NaHSi309," Zeit. Krist., 108, 248-261 (1956). 3 Mamedov, K. S., and N. V. Belov, "Crystal structure of wollastonite," Doklady Akad. Nauk. SSSR, 107, 463-466 (1956). 4 Buerger, M. J., and N. N...

Spent Foundry Sand is one of the largest industrial solid wastes generated by foundries in production iron and steel components. Currently, millions tons molten sands are discarded worldwide. Therefore, this work aims to reuse for glass-ceramic materials, since minimizes environmental impacts related its discarding. The Sand, composed >60% SiO2, was mixed with limestone melted at 1500 °C produc...

This sixty-eighth volume of IARC Monographs considers certain forms of crystalIine and amorphous silica, some silicates (palygorskite, also called attapulgite; sepiolite; wollastonite; and some natura1 and synthetic zeolites, exc1uding erionite), coa1 dust and para-aramid fibrils. Some of these agents are fibrous in nature (palygorskite, sepiolite, wollastonite and sorne natural zeolites, as we...

The composition of a planet’s atmosphere can be buffered by chemical reactions with minerals at its surface [1-5]. The compositions of ‘hot’ thick exoplanet atmospheres can therefore act as probes of their planets’ surface mineralogies and compositions. In the context of a planetary atmosphere, however, many potential buffering reactions are not stable and would lead to catastrophic greenhouse ...

The distribution of length and diameter and the aspect ratio of crocidolite asbestos, a mineral substitute for asbestos (wollastonite), a manmade mineral fibre (glass wool), and synthetic fibres (polypropylene and polyacrylonitrite) were determined by light microscopy with phase contrast and, for crocidolite, also with transmission electron microscopy. The synthetic organic fibres and manmade m...

The mesothelial lining is a target for the fibrotic and carcinogenic effects of mineral fibers. Fiber geometry, dimensions, chemical composition, surface reactivity, and biopersistence at the target tissue have been proposed to contribute to these toxic endpoints. We established a dose-response relationship between the number of fibers delivered to the parietal peritoneal lining, inflammation, ...

a set of parallel lathlike strips which extend indefinitely in the direction of the b-axis and which have their common planar surfaces parallel to (101). The co-ordination of the Ca3 (or Na in pectolite) is curious. Its nearest neighbors are the three oxygen atoms 02, 03, and 04. All other oxygen atoms are at distances much greater than the sum of the ionic radii of Ca (or Na) and 0. The Ca3 (o...

the area under study is located 75 km north of isfahan north of fenshark village.the mesozoic deposits of this area have been metamorphosed in the vicinity of neogene granodiorites and quartzdiorites ,forming hornfelses in three individual facies albit-epidot-hornfelses in three individual facies albit-epidot-hornblende-and pyroxene hornfels. wollastonite,vesuvianite,garnet and calcite are the ...