Synonyms
Examples for "silicon dioxide "
Examples for "silicon dioxide "
1 Chemical components in the rock; e.g., granite is largely silicon dioxide and aluminum oxide.
2 Composition Chemical components in the rock; e.g., granite is largely silicon dioxide and aluminum oxide.
3 Quartz is the name that geologists have ascribed to the crystalline form of silicon dioxide .
4 In 2007 silicon dioxide was replaced with a metal oxide, again resulting in performance improvements.
5 It was nebulized in a spray dryer using colloidal silicon dioxide as a drying adjuvant.
1 The purification procedure entailed ethyl acetate extract, silica gel column, and thin layer chromatography.
2 The extracts were then further purified with SPE silica gel tubes deactivated with trimethylamine.
3 The dimer fraction was separated by size-exclusion chromatography (SEC) after pre-fractionation on silica gel .
4 After removing the template by calcination, porous dehydrated silica gel nanoshells of uniform size were obtained.
5 Both extracts were subjected to silica gel column chromatography for isolation of main constituents, followed by purification in sephadex.
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