silicon dioxide

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Related to Amorphous silica: diatomaceous earth, Crystalline silica

silicon dioxide

n.
Silica.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.silicon dioxide - a white or colorless vitreous insoluble solid (SiO2)silicon dioxide - a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
cristobalite - a white mineral consisting of silica; found in volcanic rocks
quartz - a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
chert - variety of silica containing microcrystalline quartz
flint - a hard kind of stone; a form of silica more opaque than chalcedony
lechatelierite, quartz, quartz glass, vitreous silica, crystal - colorless glass made of almost pure silica
oxide - any compound of oxygen with another element or a radical
silex - a pure form of finely ground silica
tridymite - a mineral form of silica
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
piidioksidi
References in periodicals archive ?
Larger magnesium removal and the conversion of fibers into amorphous silica were obtained by increasing the strength of the acid treatment, namely by reducing pH and increasing time and temperature.
Opal-A (amorphous silica) can react with Ca[(OH).sub.2] to produce hydrated calcium silicate.
Strachan, "First-principles investigation of low energy E/center precursors in amorphous silica," Physical Review Letters, vol.
At the same time, the XRD results indicate that the amorphous silica preferably crystallized into [alpha]-cristobalite when KD-S fibres were annealed in simulated atmosphere than in dry air.
There are three essential factors that cause the Alkali-Silica Reaction: alkalis, certain alkaline reactive amorphous silica minerals, and moisture having the role of the reagent and a transport media (Marku.
Considering that the solubility of amorphous silica was high at elevated temperatures [74], the calculated results should approximate the conditions of the experiments.
At temperatures greater than 800[degrees]C, the amorphous silica present in sugarcane is converted in crystalline silica polymorphs, such as quartz, cristobalite, and tridymite [18].
The main components in the additives on the surface of the toner particles are titanium dioxide (Ti[O.sub.2]) nanoparticles and amorphous silica nanoparticles.
The Energy Dispersive Spectrometry (EDS) and X-ray Diffraction (XRD) are carried out to confirm the presence amorphous silica in produced waste paper sludge.
Innovative Silica Technologies, a company involved in providing all-natural, sustainably produced silica for use in a wide array of applications, says that it has developed a patented process to produce some of the purest amorphous silica.
Huber Corporation, has launched a new packaging concept implemented at its Havre de Grace, Maryland, precipitated amorphous silica production facility.