Aluminum sulfate octadecahydrate
十八水合硫酸铝
Also known as: Aluminium sulfate octadecahydrate, Aluminum sulfate hydrate (2:3:18), Dialuminum trisulfate octadecahydrate, Cake alum, Patent alum
Aluminum sulfate octadecahydrate (CAS 7784-31-8) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H36Al2O30S3 and a molecular weight of 666.426 g/mol. It is also known as Aluminium sulfate octadecahydrate, Aluminum sulfate hydrate (2:3:18) and Dialuminum trisulfate octadecahydrate. Key properties include a melting point of 86 °C, a boiling point of 330ºC at 760 mmHg and a density of 1,69 g/cm3. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7784-31-8
- Jingsj CID
- J-13701-2
- Molecular Formula
- H36Al2O30S3
- Chinese Name
- 十八水合硫酸铝
- Molecular Weight
- 666.426 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 86 °C |
|---|---|
| Boiling Point | 330ºC at 760 mmHg |
| Density | 1,69 g/cm3 |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Aluminum sulfate octadecahydrate?
The CAS number of Aluminum sulfate octadecahydrate is 7784-31-8.
What are the molecular formula and molecular weight of Aluminum sulfate octadecahydrate?
Aluminum sulfate octadecahydrate has molecular formula H36Al2O30S3 and molecular weight 666.426 g/mol.
Is Aluminum sulfate octadecahydrate hazardous?
Aluminum sulfate octadecahydrate 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. "Aluminum sulfate octadecahydrate (CAS 7784-31-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13701-2 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.