silicon dioxide

Also known as silicic anhydride, silica, silicon oxide

chemical compound

AI overview

Silicon dioxide is a chemical compound made of silicon and oxygen atoms bonded together, commonly found in sand, quartz, and glass. It matters because it's one of the most abundant materials on Earth and is used in many everyday products, from construction materials to electronics.

AI-generated from the Wikipedia summary — may contain errors.

Chemical data

Formula: O2Si
Molecular weight: 60.084 g/mol
IUPAC name: dioxosilane
SMILES: O=[Si]=O
InChIKey: VYPSYNLAJGMNEJ-UHFFFAOYSA-N
Polar surface area: 34.1 Å²
H-bond donors: 0
H-bond acceptors: 2
Formal charge: 0

via PubChem

Research

92,185 papers

Silicon dioxide nanoparticles compromise decidualization via autophagy impairment to possibly cause embryo resorption.Toxicology letters · 2023Bai Y, Li FF, Zhang Y et al.DOI: 10.1016/j.toxlet.2023.05.003
Silica.ReviewIARC monographs on the evaluation of carcinogenic risks to humans · 1997
Nanosized Additives: Silicon Dioxide's Potential Role in Development of Food Sensitivities in Mice.Environmental health perspectives · 2024Schmidt SDOI: 10.1289/EHP14923
The Role of Lysozyme in the Formation of Bioinspired Silicon Dioxide.Chemistry (Weinheim an der Bergstrasse, Germany) · 2024Macchiagodena M, Fragai M, Gallo A et al.DOI: 10.1002/chem.202401249
Monoliths.Electrophoresis · 2017DOI: 10.1002/elps.201700381
[Research progress about the relationship between nanoparticles silicon dioxide and lung cancer].ReviewZhongguo fei ai za zhi = Chinese journal of lung cancer · 2014Dai C, Huang Y, Zhou YDOI: 10.3779/j.issn.1009-3419.2014.10.09
New Insights into Quercetin Restoring the Impairment of Testicular Angiogenesis Induced by Silicon Dioxide Particles in Food: Inhibiting ROS/PPARγ-Mediated Ferroptosis.Journal of agricultural and food chemistry · 2025Yang X, Li K, Chen X et al.DOI: 10.1021/acs.jafc.4c11053
Effect of Silicon Dioxide Nanoparticles on Syrian Hamsters Infected by Opisthorchis felineus: (1)H MRS Study of the Brain.Doklady. Biochemistry and biophysics · 2020Lvova MN, Shevelev OB, Serdobintseva VV et al.DOI: 10.1134/S1607672920060095

via PubMed

Wikidata facts

Mass: 60.0843
Image: Sample of silicon dioxide.jpg

Show 8 more facts

Commons category: Silicon dioxide
canonical SMILES: O=[Si]=O
melting point: 3110
boiling point: 4046
vapor pressure: 0
chemical formula: SiO₂
NCI Thesaurus ID: C29853
solubility: 0.900

Sources (10)

via Wikidata · CC0

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Article

Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO2, and is commonly found in nature as quartz. In many parts of the world, silica is the major constituent of sand. Silica is one of the most complex and abundant families of materials, existing as a compound of several minerals and as a synthetic product. Examples include fused quartz, fumed silica, opal, and aerogels. It is used in structural materials, microelectronics, and as components in the food and pharmaceutical industries. All forms are white or colorless, although impure samples can be colored or opaque.

Silicon dioxide is a common fundamental constituent of glass.