Potassium persulfate
过硫酸钾
Also known as: Potassium peroxydisulfate, Potassium peroxodisulfate, Potassium peroxydisulphate, Anthion, Dipotassium peroxydisulfate, Dipotassium persulfate
Potassium persulfate (CAS 7727-21-1) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula K2O8S2 and a molecular weight of 270.322 g/mol. It is also known as Potassium peroxydisulfate, Potassium peroxodisulfate and Potassium peroxydisulphate. Key properties include a melting point of 1067 °C, a boiling point of 1689 °C, a density of 2.47 and a flash point of NotºCombustible. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7727-21-1
- Jingsj CID
- J-36041-4
- Molecular Formula
- K2O8S2
- Chinese Name
- 过硫酸钾
- Molecular Weight
- 270.322 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 1067 °C |
|---|---|
| Boiling Point | 1689 °C |
| Density | 2.47 |
| Flash Point | NotºCombustible |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Potassium persulfate?
The CAS number of Potassium persulfate is 7727-21-1.
What are the molecular formula and molecular weight of Potassium persulfate?
Potassium persulfate has molecular formula K2O8S2 and molecular weight 270.322 g/mol.
Is Potassium persulfate hazardous?
Potassium persulfate has GHS signal word Danger.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Potassium persulfate (CAS 7727-21-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36041-4 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.