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1.05741

Molecular sieve 0.3 nm

Name: Molecular sieve 0.3 nm
Brand: MM

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:

1318-02-1

MDL number:

MFCD00077645

UNSPSC Code:

41123003

NACRES:

NB.21

EC Index Number:

215-283-8

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Properties

Quality Level

200

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

SMILES string

[Si](=O)=O.[Al](=O)O[Al]=O

InChI

1S/2Al.O2Si.3O/c;;1-3-2;;;

InChI key

HNPSIPDUKPIQMN-UHFFFAOYSA-N

Description

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

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c