silica
71silica — sil•i•ca [[t]ˈsɪl ɪ kə[/t]] n. chem. the dioxide form of silicon, SiO2, occurring esp. as quartz sand, flint, and agate: used chiefly in the manufacture of glass, water glass, ceramics, and abrasives • Etymology: 1795–1805; < NL, der. of L… …
72silica — /ˈsɪlɪkə / (say silikuh) noun silicon dioxide, SiO2, appearing as quartz, sand, flint, and agate. {New Latin, from Latin silex flint} …
73silica — A common mineral (silicon dioxide) found as sand, quartz, etc., used in the manufacture of glass, ceramics and abrasives …
74silica — A mineral found in quartz and sand. 36 Am J1st Min & M § 5 …
75All-silica fiber — Silica fiber or silicic acid fibres are produced from sodium silicate fibers in a dry spinning method, the sodium silicate fibres are free of non alkali metal compounds and have a mole Na2O : SiO2 ratio of 1 :3 to 1:9; the silicic acid fibres… …
76amorphous silica — Silica with no definite crystalline structure [16] …
77silica group — noun A large group of silicate minerals having a silicon to oxygen ratio of 1:2. This group includes many silicates of sodium, potassium, calcium, and aluminum in an open network structure …
78silica (SiO2) — most common mineral component of rock …
79silica-acid refractories — Смотри полукислые огнеупоры …
80silica refractories — Смотри динасовые огнеупоры …