Bentonite
Also known as: Montmorillonite, Fuller's earth, Sodium bentonite, Calcium bentonite, Albagel Premium USP 4444, KWK Krystal Klear, Bentonite magma
Bentonite (CAS 1302-78-9) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Al2O3.4(SiO2).H2O and a molecular weight of 360.31 g/mol. Key properties include a boiling point of 381.8±37.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 184.7±26.5 °C. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 1302-78-9
- Jingsj CID
- J-1109075-3
- Molecular Formula
- Al2O34(SiO2)H2O
- Molecular Weight
- 360.31 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Boiling Point | 381.8±37.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 184.7±26.5 °C |
| Exact Mass | 284.060425 |
| PSA | 189.16000 |
| LogP | 2.24 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.503 |
| Additional Property | Practically insoluble in water and in aqueous solutions. It swells with a little water forming a malleable mass. | Insoluble in water and forms a colloidal solution. |
Customs & Trade Information
| HS Code | 3802900090 |
|---|
Frequently Asked Questions
What is the CAS number of Bentonite?
The CAS number of Bentonite is 1302-78-9.
What are the molecular formula and molecular weight of Bentonite?
Bentonite has molecular formula Al2O3.4(SiO2).H2O and molecular weight 360.31 g/mol.
Which suppliers offer Bentonite?
1 supplier(s) listed; request a quote for pricing.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Bentonite (CAS 1302-78-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1109075-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.