• for drying unsaturated hydrocarbons in gaseous or liquid phase (ethylene, propylene, butadiene, acetylene)
  • for drying alcohols (methanol, ethanol)
  • for removal of CO from the air, in production of N2 and O2
  • for drying polar liquids with a small molecular diameter
  • as a drying agent into double or triple glazing of windows

General characteristics

Potasit is a synthetic type 3A zeolite with pores size 0.3 nm. Molecular sieves are crystalline aluminosilicates of alkali metals or alkaline earth metals. They have a 3-D crystal lattice with tetrahedrons SiO4 and AlO4 as its basic components, arranged to create a regularly alternating cavities. Dimensions of intra-crystalline cavities and entering pores into cavities are characteristic for the individual types of molecular sieves. Molecular sieves are free of toxic documents.

Potasit has 50 – 60% of sodium ions replaced by the potassium ions. Its chemical composition in dehydrated state expresses the formula K2O. Na2O . Al2O3 . 2 SiO2.

Quality indicators

Name Chemical composition Effective
pores radius (nm)
(g/100 g)
- powder


- min. 21,0

220 - 260

- G 14/18
sodium-potassium-aluminosilicate 0,3 min. 10,0 min. 17,0 735 - 850
- V 30
sodium-potassium-aluminosilicate 0,3 min. 20,0 min. 17,0 600 - 760

RAK43 - equilibrium adsorption capacity
It determines the zeolite capacity do adsorb water vapor from the air at 25 °C and relative air humidity 43% in g water per 100 g dry zeolite
G 14/18 - balls of 1,4 - 1,8 mm diameter


Zeolites are packaged and delivered in metallic 20-liter or 200-liter-containers. Water content in granulated packaged products is not more than 1.5 % mass.

Guarantee period lasts 2 years from the date of production.

Potasit is characterized by the standard

Synthetic zeolites, molecular sieves of type A and Y
PN VÚRUP 024 - 03 Powdered A type zeolites, 3A Potasit, 4A Nalsit


Potasit (175.49 KB, pdf)