MCM-48
Product Detail
MCM-48 is a mesoporous molecular sieve of porous silica (SiO2, CAS No. 7631-86-9). ACS Material MCM-48 is prepared by the hydrothermal method and supplied calcined and ready to use. The current grade, Type B, is a reagent-grade white powder of flower-shaped particles (200–500 nm) with a BET surface area > 800 m²/g, a pore volume of 0.5–0.8 cm³/g and an average pore size of about 2.7 nm. Type A (spherical particles) has been discontinued; its data are kept below for reference.
Key features
- High surface area. BET surface area > 800 m²/g.
- Small mesopores. Average pore size of about 2.7 nm; pore volume 0.5–0.8 cm³/g (Type B).
- Flower-shaped particles. Type B is supplied as flower-shaped particles with a particle size of 200–500 nm.
- Calcined and ready to use. Supplied calcined; the powder is ready to use directly.
- Hydrothermal preparation. Prepared by the hydrothermal method; reagent grade, white powder.
- Collapsing temperature. The collapsing temperature of MCM-48 is about 750 °C.
Characterizations
| Property | Type B | Type A (Discontinued) |
|---|---|---|
| Grade | Reagent grade | Reagent grade |
| Appearance | White powder | White powder |
| Particle size | 200–500 nm | 200–400 nm |
| Shape | Flower | Spherical |
| BET surface area | > 800 m²/g | > 800 m²/g |
| Pore volume | 0.5–0.8 cm³/g | 0.6–0.75 cm³/g |
| Average pore size | About 2.7 nm | About 2.7 nm |
| Boiling point | 2230 °C (lit.) | 2230 °C (lit.) |
| Melting point | > 1600 °C (lit.) | > 1600 °C (lit.) |
| Preparation method | Hydrothermal method | Hydrothermal method |
This product is calcined and ready to use directly. Synonyms: MCM-48, porous silica, silicon dioxide. Linear formula SiO2; molecular weight 60.08; EC No. 231-545-4.
Ordering information
| Option | Grade | Package | Product No. |
|---|---|---|---|
| B-5g | Type B, reagent grade | 5 g | MSM48005 |
Typical data
Type B
Type A · discontinued, reference only
The SEM, TEM, BET and XRD data below were measured on Type A, which has been discontinued. They are shown for reference only and are not Type B results.
Applications
Mesoporous silicas are inorganic materials with porous structures and find applications in chromatography, catalysis, drug delivery and imaging.
FAQ
What is the difference between MCM-48 Type A and Type B?
Type A (now discontinued) had spherical particles of 200–400 nm and a pore volume of 0.6–0.75 cm³/g. Type B, the current grade, has flower-shaped particles of 200–500 nm and a pore volume of 0.5–0.8 cm³/g. Both are reagent-grade white powders with a BET surface area > 800 m²/g and an average pore size of about 2.7 nm.
Does MCM-48 need to be calcined before use?
ACS Material MCM-48 is calcined and ready to use directly.
What is the collapsing temperature of MCM-48?
About 750 °C.
Which package size is available?
Type B, 5 g (MSM48005).
Where can I find the TDS and SDS?
The Technical Data Sheet (TDS) and Safety Data Sheet (SDS) for this product are available under the price on this page.