silica


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Related to silica: silica sand, Silica dust

silica

 [sil´ĭ-kah]
silicon dioxide, which occurs in nature as agate, amethyst, sand, quartz, chalcedony, cristobalite, and flint; it is one of the major constituents of dental porcelain, and in granular form serves as a dental abrasive and polishing agent. See also silicosis.

sil·i·ca

(sil'i-kă),
The chief constituent of sand, hence of glass.
[Mod. L. fr. L. silex (silic-), flint]

silica

/sil·i·ca/ (sil´ĭ-kah) silicon dioxide, SiO2, occurring in various allotropic forms, some of which are used in dental materials. See also silicosis.

silica (SiO2)

[sil′i·kə]
Etymology: L, silex, flint
silicon dioxide, an inorganic compound occurring in nature as agate, sand, amethyst, flint, quartz, and other stones. It is one of the major constituents of dental porcelain and a common filler in resin composites. In granular form, it serves as a dental abrasive and polishing agent. See also silicosis.

silica

Homeopathy
Silica, see there.

Toxicology
The highly fibrogenic mineral form of silicon, silicon dioxide.

Silica

Homeopathy
A homeopathic remedy prepared from quartz, which is used to stimulate the immune system and to treat abscesses, acne, athlete’s foot, breast cysts, earache, fractures, haemorrhoids, infections (colds, flu and otitis), insomnia, lymphadenopathy, periodontal disease, poor bone growth and sweating.

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]

Silica

A substance (silicon dioxide) occurring in quartz sand, flint, and agate. It is used in making glass, scouring and grinding powders, pottery, etc.
Mentioned in: Silicosis

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]

silica (sil´ikə) (quartz),

n the purest of three major ingredients that make up dental porcelain. It imparts stiffness and hardness to the product and is the framework around which the kaolin and feldspar contract.

silica

silicon dioxide, a compound occurring naturally as quartz and in other forms. A common constituent of urinary calculi in agricultural animals, a rare occurrence in dogs.

silica calculi
see silica urolith.
silica gel
commonly used in the laboratory as a desiccant; has been used topically on dogs and cats for flea control.
References in periodicals archive ?
Browse Full "Specialty Silica Market: Global Industry Analysis and Opportunity Assessment, 2015 - 2025" Market Research Report at http://www.
Fiberglass was the largest application segment of the silica flour market, accounting for over 25% share in 2014.
The preparation of the emulsion SBR component of the silica masterbatch proceeds via a conventional emulsion polymerization process.
The multimillion-dollar investment in Delfzijl will not only expand capacity but also give us the flexibility to rapidly switch existing production capability between conventional precipitated silica and Agilon performance silica to meet marketplace needs, Jain added.
Tensile strength tests on 5 mm wide, 20 mm long, and 4 pm thick pure PVC and composite specimens with different silica contents were done on Instron 5943 machine with a load cell of 1 kN.
WORLD SPECIALTY SILICA DEMAND (thousand metric tons) % Annual Growth 2006- 2011- Item 2006 2011 2016 2011 2016 Specialty 1670 2125 2790 4.
US 8,211,408 B2--a low PH oral care composition comprising fused silica and a fluoride source;
The directive also dictates an evaluation procedure for recording reductions of employee exposures to silica and information on outreach programs, partnerships and alliances with employers to share resources and training to reduce employee exposures.
The newly produced type of silica probably doesn't exist on Earth.
Crystalline silica has been used in many industries such as blast furnaces, cement manufacturing, glass and concrete mixing product manufacture, ceramics, clay, glass and china pottery, electronic, foundry, sandblasting and manufacturing abrasives, and many construction activities (Altindag et al.
It can be applied on machine via metered size press to achieve inkjet print results close to those of silica.
F-Series silica fillers are compatible with FRP backup layers, gel coats, epoxy flooring, and other thermosets and thermoplastics.