SiOH4
Tetrabasic Tet`ra*bas"ic, a. [Tetra- + basic.] (Chem.) Capable of neutralizing four molecules of a monacid base; having four hydrogen atoms capable of replacement by bases; quadribasic; -- said of certain acids; thus, normal silicic acid, {Si(OH)4}, is a tetrabasic acid. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Porous silicon — (pSi) is a form of the chemical element silicon which has an introduced nanoporous holes in its microstructure, rendering a large surface to volume ratio in the order of 500m2/cm3. History Porous silicon was first discovered by accident in 1956… …   Wikipedia

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