1.05708

Molecular sieve 0.4 nm

beads ~ 2 mm / ~ 10 mesh Reag. Ph Eur

• Synonym(s): Molecular sieve 0.4 nm, Sodium aluminium silicate
• CAS Number: 1318-02-1
• UNSPSC Code: 41123003
• EC Index Number: 215-283-8
• NACRES: NB.21

Properties

• agency: reag. Ph. Eur.
• Quality Level: 200
• form: beads
• particle size: ~10 mesh; ~2 mm
• pore size: 0.4 nm
• pH: 8-11 ( in H₂O)
• mp: >1600 °C
• bulk density: 700‑750 kg/m³
• storage temp.: no temp limit

Description

General description

Molecular sieve 0.4 nm is a porous solid that can be used in desiccators and drying tubes to dry gases and absolute solvents. It also changes its color from brown to yellowish at a water uptake of approximately 7-10 g/100 g molecular sieve.

Application

Molecular sieve 0.4 nm can be used as a catalyst:

• For the conversion of epoxides to thiiranes by treating with thiourea.
• In the solvent-free acetylation of eugenol with acetic anhydride to synthesize eugenyl acetate.

It can also be used as catalyst support in the copper-palladium bimetallic catalyzed Suzuki-Miyaura coupling of aryl halides with phenylboronic acids to synthesize biphenyls.

Features and Benefits

• Easy to use
• Chemically inert
• Non-toxic
• Dried liquids can be decanted
• High adsorption capacity
• Selective adsorption
• Reusable

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable