Standard Type 4A – Molecular Sieve


Type 4A Molecular Sieve is a synthetic zeolite with microporous aluminosilicate crystals composed of a silicon-oxy tetrahedron and an alumina tetrahedron. 4A Molecular Sieve is an A-type crystal with a pore size of 4 Angstroms in diameter, created by a sodium (Na) ion formation.

Product Application

Standard 4A is applied in the dehydration of most gases and liquids such as air, carbon dioxide, natural gas, coal gas, hydrogen gas, oxygen gas, refrigerants, solvent, and in the purification of Argon gas.

Product Specification
PropertyUnit4×8 Mesh4×8 Avg*8×12 Mesh8×12 Avg*
Diametermm2.5 – 5.01.6 – 2.5
Bulk Densitylb/ft343.7 – 47.445.3546.8 – 50.648.7
Crush Strengthlbf≥ 1827.47≥ 912.65
Static H2O Adsorptionwt%≥ 21.523.36≥ 21.522.63
Attritionwt%≤ 0.10.07≤ 0.10.07
Moisture Contentwt%≤ 1.50.54≤ 1.50.63
PackagingBead2,204.6lb / Super Sack330.7lb / Drum

*Avg refers to a 12 month average of lot analyses

Industries Used
  • Natural Gas
  • Hydrogen
  • Oxygen
  • Coatings
  • Coal
  • Refrigerants
  • Argon
  • Pharmaceuticals

Adsorbents cannot be exposed in the open air and should be stored in dry conditions with air-proof packaging.