Silicon dioxide

REF : 18649-6X2.5KG
Marca : Sigma-Aldrich
Descrição :Silicon dioxide acid washed
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Descrição detalhada : Silicon dioxide (SiO2) exists in three crystalline forms, namely quartz, tridymite and cristobalite. It reacts with hydrofluoric acid to form silicon tetrafluoride (SiF4) and water. Silicates are formed on reacting SiO2 with alkali melts. SiO2 is the main component in glass, brick and concrete and also forms the insulator in silicon devices. The alteration of the surface of SiO2 with (3-aminopropyl)triethoxysilane (APTES) for binding lactate dehydrogenase (LDH) to form an amino layer has been reported. The silicon-silicon dioxide structure has been investigated at liquid nitrogen temperature by electron spin resonance spectra.
Sinónimos : Cristobalite; Quartz; Sand; Silica
Fórmula molecula r: SiO2
Armazenamento : Room Temperature
Embalagem : 6X2.5KG