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SHEET /m/potassium · PubChem CID 5462222 · CAS 7440-09-7 · REV 2026.07

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Potassium

from source

K · 39.0983 g/mol

K · Kalium · potasio

What is Potassium?

The metal that catches fire on water, and, as its ion, the charge that lets every nerve in your body fire. Bananas are famous for it. Element 19. Found in coffee. from source

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Fig. 1 · 2D structure RDKit

SMILES[K]

Where you'll find it

Curated by MoleculeFinder from source

Toxicity & hazards

DangerFlammableCorrosiveH260, H314, H318from source

Sources & methodology

PubChem CID
5462222
Wikidata
Q703
Structure
PubChem → RDKit
Everyday relationships
MoleculeFinder editorial curation
Data refreshed

How MoleculeFinder sources and labels its data