Potassium bisulfate
Also known as: Potassium hydrogen sulfate, Potassium bisulphate, Potassium hydrogen sulphate, Monopotassium sulfate
Potassium bisulfate (CAS 7646-93-7) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula HKO4S and a molecular weight of 136.16900 g/mol. Key properties include a melting point of 214 °C(lit.), a boiling point of 330ºC at 760 mmHg and a density of 2.512 g/mL at 25 °C(lit.). It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7646-93-7
- Jingsj CID
- J-32880-3
- Molecular Formula
- HKO4S
- Molecular Weight
- 136.16900 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 214 °C(lit.) |
|---|---|
| Boiling Point | 330ºC at 760 mmHg |
| Density | 2.512 g/mL at 25 °C(lit.) |
| Exact Mass | 135.92300 |
| PSA | 85.81000 |
| LogP | 0.08540 |
| Additional Property | soluble |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2833299090 |
|---|
Frequently Asked Questions
What is the CAS number of Potassium bisulfate?
The CAS number of Potassium bisulfate is 7646-93-7.
What are the molecular formula and molecular weight of Potassium bisulfate?
Potassium bisulfate has molecular formula HKO4S and molecular weight 136.16900 g/mol.
Is Potassium bisulfate hazardous?
Potassium bisulfate has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Potassium bisulfate?
For Potassium bisulfate, Upstream Products: Ammonium hydrogen sulfate, L-(+)-Tartaric acid, Potassium iodide; Downstream Products: tert-Butyl N-(2-bromoethyl)carbamate, Methanesulfonic acid 5-Boc-amino-pentyl ester, N-Boc-3-carboethoxy-4-piperidone.
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 bisulfate (CAS 7646-93-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32880-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.