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silica powder

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См. также в других словарях:

  • 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 — /sil i keuh/, n. the dioxide form of silicon, SiO2, occurring esp. as quartz sand, flint, and agate: used usually in the form of its prepared white powder chiefly in the manufacture of glass, water glass, ceramics, and abrasives. Also called… …   Universalium

  • 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

  • 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

  • Digital image correlation — and Tracking (DIC/DDIT) is an optical method that employs tracking image registration techniques for accurate 2D and 3D measurements of changes in images. This is often used to measure deformation (engineering), displacement, and strain, but it… …   Wikipedia

  • silex — si·lex sī .leks n silica or a siliceous material esp. for use as a filler in paints or wood or as a dental material * * * si·lex (siґleks) [L. “flint”] a refined form of silica powder, which may be mixed with water or a mouthwash solution to… …   Medical dictionary

  • Silicon dioxide — Silica redirects here. For other uses, see Silica (disambiguation). Silicon dioxide …   Wikipedia

  • Spin column-based nucleic acid purification — Silica on a minicolumn with water and with DNA sample in chaotropic buffer Column based nucleic acid purification is a solid phase extraction method to quickly purify nucleic acids. This method relies on the fact that the nucleic acid may bind… …   Wikipedia

  • 2001 anthrax attacks — A letter sent to Senate Majority Leader Tom Daschle containing anthrax powder killed two postal workers Location New York …   Wikipedia

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