Definition of SiO2. Meaning of SiO2. Synonyms of SiO2

Here you will find one or more explanations in English for the word SiO2. Also in the bottom left of the page several parts of wikipedia pages related to the word SiO2 and, of course, SiO2 synonyms and on the right images related to the word SiO2.

Definition of SiO2

SiO2
Silex Si"lex, n. [L., a finit, a pebblestone.] (Min.) Silica, SiO2 as found in nature, constituting quarz, and most sands and sandstones. See Silica, and Silicic.
SiO2
Quartz Quartz, n. [G. quarz.] (Min.) A form of silica, or silicon dioxide (SiO2), occurring in hexagonal crystals, which are commonly colorless and transparent, but sometimes also yellow, brown, purple, green, and of other colors; also in cryptocrystalline massive forms varying in color and degree of transparency, being sometimes opaque. Note: The crystalline varieties include: amethyst, violet; citrine and false topaz, pale yellow; rock crystal, transparent and colorless or nearly so; rose quartz, rosecolored; smoky quartz, smoky brown. The chief crypto-crystalline varieties are: agate, a chalcedony in layers or clouded with different colors, including the onyx and sardonyx; carnelian and sard, red or flesh-colored chalcedony; chalcedony, nearly white, and waxy in luster; chrysoprase, an apple-green chalcedony; flint, hornstone, basanite, or touchstone, brown to black in color and compact in texture; heliotrope, green dotted with red; jasper, opaque, red yellow, or brown, colored by iron or ferruginous clay; prase, translucent and dull leek-green. Quartz is an essential constituent of granite, and abounds in rocks of all ages. It forms the rocks quartzite (quartz rock) and sandstone, and makes most of the sand of the seashore.

Meaning of SiO2 from wikipedia

- also known as silica, is an oxide of silicon with the chemical formula SiO2, commonly found in nature as quartz. In many parts of the world, silica is...
- gel is also combined with alkali metals to form a M-SG reducing agent. (See SiGNa chemistry) Silica gel is not expected to biodegrade in either water or...
- in SiO2 ALD are provided below. Primary reactions at surface: SiOH* + SiCl4 → SiOSiCl3* + HCl SiCl* + H2O → SiOH* + HCl Overall ALD reaction: SiCl4 +...
- the following materials: M1: Si3N4 M2: Poly-Si M3: Sidewall Oxide (SiO2) M4: SiO2 M5: Si3N4 M6: SiO2 M7: Si Substrate M8: Air Accurate n and k values of...
- Egyptian blue, also known as calcium copper silicate (CaCuSi4O10 or CaOCuO(SiO2)4 (calcium copper tetrasilicate)) or cuprorivaite, is a pigment that was...
- approximately 90 percent of Earth's crust. In mineralogy, silica (silicon dioxide, SiO2) is usually considered a silicate mineral rather than an oxide mineral. Silica...
- framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is...
- compound SiO2) has a number of distinct crystalline forms in addition to the quartz structure. Nearly all of the crystalline forms involve tetrahedral SiO4 units...
- vapor as by-products according to the following reaction: Cu2(CO3)(OH)2 + 8 SiO2 + 2 BaCO3 → 2 BaCuSi4O10 + 3 CO2 + H2O The solid-state reaction to produce...
- tephrites. Basalt generally has a composition of 45–52 wt% SiO2, 2–5 wt% total alkalis, 0.5–2.0 wt% TiO2, 5–14 wt% FeO and 14 wt% or more Al2O3. Contents of...