silica
81silica brick — noun : brick made from crushed quartzite bonded with milk of lime and used as a high grade refractory …
82Mesoporous silica — SEM image of mesoporous silica General information Name: Mesoporous silica Appearance: fine white powder Types: MCM 41, SBA 15, MSU , KSW , FSM , HMM …
83DNA separation by silica adsorption — is an important method of DNA separation that is used in novel technologies that use micro channels. The principle behind this type of separation relies on DNA molecules binding to silica surfaces in the presence of certain salts and under… …
84Biogenic silica — (BSi) is the equivalent to the terms opal, biogenic opal, and amorphous opaline silica. BSi is essential to many plants and animals. Chemically, BSi is hydrated silica (SiO2• n H2O).Diatoms in both fresh and salt water extract silica from the… …
85Colloidal 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 …
86Alkali 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 …
87Plastic-clad silica fiber — In telecommunications and fiber optics, a plastic clad silica fiber or polymer clad silica fiber (PCS) is an optical fiber that has a silica based core and a plastic cladding. The cladding of a PCS fiber should not be confused with the polymer… …
88Hard Clad Silica Optical Fiber — (kurz HCS Fiber oder HCSF, dt. Hart ummantelter Lichtwellenleiter), auch Polymer Clad Silica Fiber oder Plastic Clad Silica Fiber (kurz PCS Fiber), bezeichnet einen Lichtwellenleiter mit einem optischen Kern aus Quarzglas und einem optischen… …
89USS Silica (IX-151) — USS Silica (IX 151), a Trefoil class concrete barge designated an unclassified miscellaneous vessel, was the only ship of the United States Navy to be named for silica. Her keel was laid down as SS Bauxite (T. B7 D1, MC hull 1331) on 5 December… …
90Dissolved silica — (DSi) is the form of water soluble silica as silicon hydroxide (equivalent to the old term silicic acid), which can be measured by standard analyses (e.g. Strickland and Parsons, 1972). However, The term dissolved silica is different from the… …
