- fine silica
- мелкодисперсный кремнезем
English-Russian dictionary of chemistre. 2014.
fine silica
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silica gel — n colloidal silica resembling coarse white sand in appearance but possessing many fine pores and therefore extremely adsorbent * * * a purified form of silica (silicon dioxide) obtained by the reaction of sodium silicate with a mineral acid; used … Medical dictionary
Silica — Sil i*ca, n. [NL., from L. silex, silics, a flint.] (Chem.) Silicon dioxide, SiO?. It constitutes ordinary quartz (also opal and tridymite), and is artifically prepared as a very fine, white, tasteless, inodorous powder. [1913 Webster] … The Collaborative International Dictionary of English
Silica fume — Not to be confused with fumed silica. Silica fume, 380m²/g Silica fume, also known as microsilica, is a fine grain, thin, and very high surface area silica. It is sometimes confused with fumed silica (also known as pyrogenic silica) and colloidal … Wikipedia
silica mineral — Any of the forms of silicon dioxide (SiO2), including quartz, tridymite, cristobalite, coesite, stishovite, melanophlogite, lechatelierite, and chalcedony. Various kinds of silica minerals have been produced synthetically. * * * Introduction… … Universalium
Silica — The chief component of sand and a substance responsible for lung disease and cancer. Crystalline silica of respirable size is primarily quartz dust occurring in industrial and occupational settings in the form of fine, breathable particles.… … Medical dictionary
silica aerogel — noun : colloidal silica in the form of a fine lightweight powder with grains having minute pores that is made from silica gel and used chiefly as thermal insulation especially at low temperatures (as in refrigerators) … Useful english dictionary
silica gel — noun Date: 1919 colloidal silica resembling coarse white sand in appearance but possessing many fine pores and therefore extremely adsorbent … New Collegiate Dictionary
Alkali Silica Reaction — (ASR) is a reaction between reactive silica (in the concrete aggregates) and an alkali (usually present in the cement), which results in the formation of a gel. This gel increases in volume with water and exerts expansive pressure on the concrete … Wikipedia
Mesoporous silica — SEM image of mesoporous silica General information Name: Mesoporous silica Appearance: fine white powder Types: MCM 41, SBA 15, MSU , KSW , FSM , HMM … Wikipedia
Colloidal silica — Colloidal silicas are suspensions of fine amorphous, nonporous, and typically spherical silica particles in a liquid phase. Contents 1 Properties 2 Manufacture 3 Applications 4 See also … Wikipedia
Properties of selected silica minerals — ▪ Table Properties of selected silica minerals name colour lustre Mohs hardness specific gravity coesite colourless vitreous near 8 2.9–3.0 cristobalite (low temperature form) white or milky vitreous 6½ 2.2–2.3 lussatite (fibrous low… … Universalium
