1.05741

Molecular sieve 0.3 nm

rods ~ 1.6 mm (1/16")

• Sinonimo/i: Molecular sieve 0.3 nm, Sodium aluminium silicate
• Numero CAS: 1318-02-1
• Codice UNSPSC: 41123003
• Numero indice EU: 215-283-8
• NACRES: NB.21

Proprietà

• Livello qualitativo: 200
• Forma fisica: rod
• Area superficiale: 800 m²/g
• Perdita: ≤10% loss on ignition, 950°C
• Dimensione particelle: ~1.6 mm
• Dimensione pori: 0.3 nm
• pH: 8-11 ( in H₂O)
• Punto di fusione: >1600 °C
• Densità bulk: 700‑750 kg/m³
• Temperatura di conservazione: no temp limit

Descrizione

Descrizione generale

Molecular sieves are crystalline, synthetic zeolites. Their crystal gratings are similar to a cage with numerous hollow spaces. The cavities are accessible from all sides by pores of exactly defined dimensions.

Applicazioni

Molecular sieves can be used:      

• in desiccators and drying tubes      
• for keeping absolute solvents dry      
• for drying gases or solvents in drying columns    
• for selective adsorption

Caratteristiche e vantaggi

• Easy to use: practically chemically inert, non-toxic, no disposal problems, dried liquids can be decanted      
• High adsorption capacity even with a low water content of the substance to be dried     
• High adsorption capacity even at high temperatures      
• High adsorption affinity for polar and unsaturated organic molecules (however, H₂O is always preferentially adsorbed)     
• Selective adsorption: only molecules that can pass through the pores are adsorbed

Risultati analitici

Identity: conforms
Loss on ignition (950 °C): ≤ 10 %
Water absorption capacity (24 hrs.,80 % relative humidity): ≥ 15 %

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 13 - Non Combustible Solids
• Classe di pericolosità dell'acqua (WGK): nwg
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable