Molecular sieve 3A (so-called zeolites) are drying agents of type A and have 1x n-modules, whereby these zeolites have the highest polarity and preferably exclude water. These are synthetically produced aluminosilicates. Zeolites of type 3A contain potassium in their crystal lattice (K6Na6[(AlO2)12(SiO2)12]), the resulting pore diameter is approx. 0.3 nm. This constant structure results in a very high inner surface area of up to 1000m²/g. Together with their high electrostatic adsorption forces, these molecular sieves are therefore ideal for air drying.
Molecular sieves achieve a high absorption capacity even at low relative humidity. Thus they are able to dry the supply air very strongly. This makes it useful wherever the degree of drying is a decisive selection criterion. The maximum water absorption in a fully saturated environment is about 21%. There is no colour indicator to indicate the loading condition.
Chemical Composition: Sodium-Aluminium-Silicate
CAS-number: 1318-02-1
Structure | A |
cations | K+ |
Actual pore size | 0,3 nm |
Effective pore size | 0,38 nm |
Appearance and shape | Beige, solid balls |
particle size | 3 - 5 mm |
bulk density | 0,67 kg/l |
pore volume | 0,35 - 0,70 ml/g |
breaking strength | >70 N |
Specific surface | 500 - 1000 m²/g |
575°C Loss on ignition | <1,5 % |
rate of abrasion | <0,25 % |
water absorption capacity | >210 ml/kg |
Molecular sieve 3A 20 kgProduct no.: 35.0530.00149.00 € *
Delivery weight: 20 kg
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Molecular sieve 3A 3,5 kgProduct no.: 35.0535.0034.00 € *
Delivery weight: 4 kg
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