二氧化硅的最简式是SiO2，但它并不代表一个简单分子（仅表示二氧化硅晶体中硅和氧的原子个数之比）。 纯净的天然二氧化硅晶体，是一种坚硬、脆性、不溶的无色透明的固体，常用于制造光学仪器等。

Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO2, commonly found in nature as quartz. [5][6] In many parts of the world, silica is the major constituent of sand.

Silica is another name for the chemical compound composed of silicon and oxygen with the chemical formula SiO2, or silicon dioxide. There are many forms of silica.

Apr 11, 2021 · 实际上，SiO2晶体是由Si和O按1：2的比例所组成的立体网状结构的晶体。 因此，通常用SiO2来表示二氧化硅的组成。 SiO4四面体不仅存在于SiO2晶体中，而且存在于所有硅酸盐矿石中， …

Jan 28, 2025 · Silicon Dioxide ( SiO₂) – Definition, Structure, Preparation, Uses, Side Effects Silicon Dioxide is denoted as SiO₂, is a common covalent compound that plays a significant role in the world …

The structures of the β-cristobalite phases of SiO2 and AlPO4. Philosophical Magazine. 1975, 31 (6): 1391–401. Bibcode:1975PMag...31.1391W. doi:10.1080/00318087508228690. ^ Shropshire, …

Feb 22, 2024 · I.概况化学式：SiO2。 CAS登记号：14808 60 7。 摩尔质量 (g/mol)：60.084。 II.物理性质颜色：白色。 性状：晶体。 熔点 (℃)：1710 (在867℃时开始转变为不同的硅石形式)。 沸点 …

Silica, or silicon dioxide, is essential in various industries, from electronics to construction, due to its unique properties and abundant availability.

Silicon dioxide (SiO2), or silica, is defined as a common natural material and the second most prevalent biomineral, primarily found in soil, sand, and rock, as well as in various living organisms, including …

It makes up about 60 percent of the weight of the Earth's crust either as an independent compound (SiO2) or in combination with metallic oxides that form silicates.