silicic acid


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

si·lic·ic ac·id

(si-lis'ik as'id),
Obtained in water as a colloid by treating silicates; precipitated silicic acid is silica gel.
Farlex Partner Medical Dictionary © Farlex 2012

silicic acid

Any of a family of acids containing silica, such as H2SiO3 (metasilicic acid), H2SiO4 (orthosilicic acid), or H2SiO7 (pyrosilicic acid). When silicic acid is precipitated, silica gel is obtained.
CAS # 10193-36-9
See also: acid
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
However, a higher percentage of dry matter (F = 5.95; df = 5; P = 0.001) was recorded for cultivar RB 83-5486 when subjected to silicic acid application without M.
Finally, to prevent the formation of double salts due to this added sulfuric acid, which causes degradation and caking, silicic acid was also added.
100 mg kg-1 and 150 mg kg-1 silicon from sodium silicate and silicic acid had similar effects on shoot length of wheat which was followed by the 50 mg kg-1silicon from these sources.
Under the basic pH, the silicic acid formed was allowed to condense to form silica particles.
Farmer VC, Lumsdon DG (1994) An assessment of complex formation between aluminium and silicic acid in acidic solutions.
Trivalent iron is determined by a complexonmetric method in a hydrochlorid solution received after silicic acid separation.
Below a pH of 9, monoorthosilicic acid, hereafter called silicic acid, exists in its free form in water up to saturation (100 PPM).
We treated wood with boric acid and colloidal silicic acid solutions (CSAS) or with boric acid and silicic acid monomer solutions (SAMS), and tested for resistance to brown-rot fungus (Fomitopsis palustris) damage, fire resistance, and termite resistance.
* washing with ammonia to disrupt polymers of silicic acid;
BioSilicon, on the other hand, naturally degrades into silicic acid, a form of silicon found in most foodstuffs, Aston said.
Each new organism deposits the silicic acid in a compartment called the silica-deposition vesicle.