Description

5A Molecular Sieve is a synthetic zeolite with a precisely controlled pore size of approximately 5 angstroms, making it an exceptional adsorbent for molecules of specific dimensions. Its core value lies in its ability to selectively dry, purify, and separate gas and liquid streams based on molecular size and polarity, ensuring process efficiency and product quality. This product is essential for industries requiring stringent moisture control and hydrocarbon separation, such as petrochemical refining, natural gas processing, and industrial air drying systems. The CAS number for this compound is provided separately in the specifications below.

Application

• Natural Gas Drying & Purification: Removal of water, carbon dioxide, and sulfur compounds from natural gas streams.
• Petrochemical Separation: Separation of normal paraffins from iso-paraffins and other branched-chain hydrocarbons.
• Industrial Air & Gas Drying: Production of dry air for instrument air systems, pneumatic controls, and cryogenic processes.
• Insulated Glass Desiccant: Maintaining clarity and preventing condensation in double-pane insulated glass windows (IG units).
• Refrigerant Drying: Dehydration of refrigerants like R-134a in automotive and stationary air conditioning systems.
• Oxygen Production: Pre-purification of air (removal of water and CO2) prior to cryogenic distillation in Pressure Swing Adsorption (PSA) and Vacuum Pressure Swing Adsorption (VPSA) plants.
• Solvent Drying: Dehydration of ethanol, toluene, and other industrial solvents.
• Hydrogen Purification: Removal of trace moisture and other impurities from hydrogen gas in refinery and chemical operations.

Basic Information

Product Name	5A Molecular Sieve
CAS No.	69912-79-4
Molecular Formula	Na₂O·Al₂O₃·2SiO₂·9/2H₂O (Typical unit cell composition)
Molecular Weight	N/A (Variable, based on hydration state and Si/Al ratio)
Synonyms	Zeolite 5A; Molecular Sieve Type 5A; Calcium-exchanged Zeolite A; 5Å Sieve; 5 Angstrom Molecular Sieve; MS 5A; Adsorbent 5A; CaNa-A Zeolite
EINECS	274-187-8

Quality Control

Our 5A Molecular Sieve is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key performance indicators including adsorption capacity, crush strength, bead size distribution, and bulk density to ensure consistency and reliability. Certificates of Analysis (COA) detailing these specifications are available upon request. We can supply grades suitable for various industrial applications, with quality assurance protocols aligned with standard industry practices.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive) and must be stored in a cool, dry, and well-ventilated area. Keep the container tightly sealed when not in use to prevent adsorption of atmospheric moisture and contaminants, which can reduce its effective capacity. Store away from strong acids and oxidizing agents. Standard room temperature (15-25°C) conditions are suitable.

Specification

Item	Specification
Form	Spherical Beads or Pellets
Typical Bead Size	1.6-2.5 mm, 3.0-5.0 mm (Other sizes available)
Bulk Density	≥ 660 kg/m³
Crush Strength	≥ 30 N/bead
Static H₂O Adsorption	≥ 20 wt%
Static CO₂ Adsorption	≥ 18 wt%
Loss on Ignition (LOI)	≤ 1.5 wt%
Package Moisture	< 1.5 wt%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.