SHEET /m/silicon · PubChem CID 5461123 · CAS 7440-21-3 · REV 2026.07
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Silicon
from sourceSi · 28.085 g/mol
Meteorite · Silicium · Silicium Metallicum
What is Silicon?
The element under every chip, every solar panel and most of the sand on every beach. Second most abundant element in the earth's crust. Element 14. from source
CategoryElement & material
Fig. 1 · 2D structure RDKit
SMILES
[Si]Where you'll find it
Curated by MoleculeFinder from source
Relative acute toxicity from source
Animal study data · LD50
- Reported LD50
- 3,160 mg/kg · very low toxicity
- Species
- rat
- Route
- oral
An LD50 describes acute toxicity under experimental conditions and is not a safe or dangerous dose for a person.
Toxicity & hazards
Toxicity · LD50
3,160 mg/kg · very low toxicity · LD50 rat oral from source
DangerFlammableH228, H320from source