silicon dioxide

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Related to Amorphous silica: diatomaceous earth, Crystalline silica

silicon

[sil´ĭ-kon]

a chemical element, atomic number 14, atomic weight 28.086, symbol Si. (See Appendix 6.)

silicon dioxide silica.

sil·i·ca

(sil'i-kă),

The chief constituent of sand, hence of glass.

Synonym(s): silicic anhydride, silicon dioxide

[Mod. L. fr. L. silex (silic-), flint]

Farlex Partner Medical Dictionary © Farlex 2012

silicon dioxide

Silica.

sil·i·ca

(sil'i-kă)

The chief constituent of sand, hence of glass.
Synonym(s): silicon dioxide.

[Mod. L. fr. L. silex (silic-), flint]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

sil·i·ca

(sil'i-kă)

The chief constituent of sand, hence of glass.
Synonym(s): silicon dioxide.

[Mod. L. fr. L. silex (silic-), flint]

Medical Dictionary for the Dental Professions © Farlex 2012

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References in periodicals archive ?

Pure amorphous silica was successfully extracted at a 99.1% yield from sugarcane waste ash generated by a two-stage heating process followed by precipitation by acidification of the sodium silicate solution, so obtained.

Green Synthesis and Characterization of Biosilica Produced from Sugarcane Waste Ash

Jin et al., "Size-dependent cytotoxicity of amorphous silica nanoparticles in human hepatoma HepG2 cells," Toxicology in Vitro, vol.

Assessment of Pulmonary Toxicity Induced by Inhaled Toner with External Additives

Krantz, Bonn, Germany), and two types of amorphous silica: silica gel (Merck, Kenilworth, NJ, USA) and bio-opal (amorphous silica of biogenic origin) obtained from Equisetum fluviatile (water horsetail) following the procedure of Bartoli and Wilding (1980).

Optimising the extraction of amorphous silica by NaOH from soils of temperate-humid climate

It is worth mentioning that amorphous silica was also extracted by other researchers [2, 5, 6, 9, 13] from the RHA by using other methods.

Effect of Experimental Variables on the Extraction of Silica from the Rice Husk Ash

The 2[theta] value of the present XRD spectrum result was compared and confirmed by using standard JCPDS file and the obtained XRD result is matched with JCPDS file (79-1711); hence, XRD results confirmed that the synthesized material is amorphous silica particles.

Fluorescent silica nanoparticles in the detection and control of the growth of pathogen

The amorphous silica in RH can be easily transformed to the silicate and dissolved during the alkaline pulping process, which causes the loss of silica and difficulty of alkaline recycle.

Consecutively preparing D-xylose, organosolv lignin, and amorphous ultrafine silica from Rice Husk

Colloidal silica is a suspension of fine and spherical amorphous silica particles (usually) in aqueous phase.

In situ emulsion polymerization and characterization of poly(butyl acrylate-co-methyl methacrylate)/silica nanosystems

Fillers include calcium carbonates, kaolin clays, alumina trihydrates, wood and fiber flocks, wood flours, micas, magnesium carbonates, and precipitated amorphous silica.

Fillers

The combustion temperature of 800[degrees]C was used in this study to prevent the crystallization of amorphous silica contained in the ash [10].

Extraction of silica from palm ashvia citric acid leaching treatment

The silicon substrates being used are not limited to: polydimethylsiloxane, amorphous silica, petroleum distillates, methyltriacetoxy silane, or ethyltriacetoxy silane through which sensors may be embedded into to enable the detection platform.

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The example consists of 1 wt% single-wall carbon nanotubes, 32 wt% calcium carbonate, 5 wt% iron powder, 15 wt% epoxy resin, 1 wt% amorphous silica, 8 wt% nonfibrous talc, 0.5 wt% aromatic hydrocarbons, 17.5 wt% barium sulfate, 2.5 wt% alkyl phenol, 15 wt% mercaptan terminated polymer, and 2.5 wt% [2,4,6 dimethylamino methyl]phenol 1.