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Potassium ethoxide

Also known as: Potassium ethanolate, Potassium ethylate, Ethanol, potassium salt (1:1)

Potassium ethoxide (CAS 917-58-8) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C2H5KO and a molecular weight of 84.159 g/mol. Key properties include a melting point of 250°C (dec.), a boiling point of 72.6ºC at 760 mmHg, a density of 0.894 g/mL at 25 °C and a flash point of 21.1 °C. It is classified under GHS with signal word Danger and hazard statements H251 and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
917-58-8
Jingsj CID
J-1315098-7
Molecular Formula
C2H5KO
Molecular Weight
84.159 g/mol
Category
Solvents
Last updated
11/2/2026

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Physicochemical Properties

Melting Point250°C (dec.)
Boiling Point72.6ºC at 760 mmHg
Density0.894 g/mL at 25 °C
Flash Point21.1 °C
Exact Mass83.997749
PSA23.06000
LogP0.43680
Refractive Indexn20/D 1.39

GHS Safety & Compliance

Flammable / CorrosionSignal word: Danger
  • H251
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2942000000

Frequently Asked Questions

What is the CAS number of Potassium ethoxide?

The CAS number of Potassium ethoxide is 917-58-8.

What are the molecular formula and molecular weight of Potassium ethoxide?

Potassium ethoxide has molecular formula C2H5KO and molecular weight 84.159 g/mol.

Is Potassium ethoxide hazardous?

Potassium ethoxide has GHS signal word Danger and hazard statements H251; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Potassium ethoxide?

For Potassium ethoxide, Upstream Products: Ethanol, Thallium(I) ethoxide; Downstream Products: Ethyldiphenylphosphinate, Potassium phenoxide, Allyl ethyl ether.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Potassium ethoxide (CAS 917-58-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1315098-7 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.