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1.05741

Supelco

Molecular sieve 0.3 nm

rods ~ 1.6 mm (1/16")

Synonym(s):

Molecular sieve 0.3 nm, Sodium aluminium silicate

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About This Item

CAS Number:
UNSPSC Code:
41123003
EC Index Number:
215-283-8
NACRES:
NB.21

Quality Level

form

rod

surface area

800 m2/g

loss

≤10% loss on ignition, 950°C

particle size

~1.6 mm

pore size

0.3 nm

pH

8-11 ( in H2O)

mp

>1600 °C

bulk density

700‑750 kg/m3

storage temp.

no temp limit

General description

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.

Application

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

Features and Benefits

  • 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

Analysis Note

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

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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