1.05741

Molecular sieve 0.3 nm

rods ~ 1.6 mm (1/16")

• Sinônimo(s): Molecular sieve 0.3 nm, Sodium aluminium silicate
• Número CAS: 1318-02-1
• Número MDL: MFCD00077645
• Código UNSPSC: 41123003
• Número do índice EC: 215-283-8
• NACRES: NB.21

Propriedades

• Nível de qualidade: 200
• Formulário: rod
• área da superfície: 800 m²/g
• perda: ≤10% loss on ignition, 950°C
• tamanho de partícula: ~1.6 mm
• tamanho de poro: 0.3 nm
• pH: 8-11 ( in H₂O)
• pf: >1600 °C
• densidade volumétrica: 700‑750 kg/m³
• temperatura de armazenamento: no temp limit
• cadeia de caracteres SMILES: [Si](=O)=O.[Al](=O)O[Al]=O
• InChI: 1S/2Al.O2Si.3O/c;;1-3-2;;;
• chave InChI: HNPSIPDUKPIQMN-UHFFFAOYSA-N

Descrição

Descrição geral

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.

Aplicação

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

Características e benefícios

• 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

Nota de análise

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

Informações de segurança

• Código de classe de armazenamento: 13 - Non Combustible Solids
• Classe de risco de água (WGK): nwg
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable