What is Molecular Sieve 4A?

Molecular Sieve 4A is the sodium form of Type A zeolite (Na₂O • Al₂O₃ • 2SiO₂ • 9/2H₂O) with a precise pore diameter of 4 angstroms. This crystalline aluminosilicate selectively adsorbs molecules smaller than 4Å while excluding larger molecules, making it an ideal general-purpose drying agent.

The 4A molecular sieve can adsorb oxygen, nitrogen, carbon dioxide, and straight-chain hydrocarbons, while effectively blocking aromatics and branched-chain hydrocarbons.

OozeChem is a leading molecular sieve 4A supplier in Dubai, UAE, Gulf region, and worldwide, providing high-performance solutions for industrial drying, gas purification, and liquid separation. Our molecular sieve 4A delivers exceptional adsorption capacity with proven reliability across diverse applications.

Technical Specifications

Product Information

  • Product Name

    Molecular Sieve 4A; 4A Molecular Sieve; Zeolite 4A

  • Chemical Formula

     Na₂O • Al₂O₃ • 2SiO₂ • 9/2H₂O

  • Silica-Alumina Ratio

    SiO₂/Al₂O₃ ≈ 2

  • Pore Size

    ~4Å

  • CAS Number

     70955-01-0

Detailed Specifications

Property

(4×8 mesh)

(8×12 mesh)

Appearance

Spherical beads

Spherical beads

Diameter

4×8 mesh (3.0-5.0 mm)

8×12 mesh (1.5-2.5 mm)

Static Water Adsorption

≥21% wt (@RH 50%, 25°C)

≥21% wt (@RH 50%, 25°C)

Loss on Ignition

≤1.50% wt (@575°C, 1hr)

≤1.50% wt (@575°C, 1hr)

Bulk Density

≥0.66 g/ml

≥0.66 g/ml

Abrasion

≤0.1% wt

≤0.1% wt

Compressive Strength

≥65 N

≥40 N

Granularity

≥97%

≥97%

Operating Temperature

Up to 90°C

Up to 90°C

Regeneration Temperature

200-250°C

200-250°C

Applications of OozeChem Molecular Sieve 4A

  • Air Drying Systems

    Efficiently removes water vapor from compressed air and gases to prevent corrosion and equipment failure.

  • Refrigerant Drying

    Prevents ice formation and blockage in refrigeration and air conditioning systems by adsorbing moisture.

  • Natural Gas Dehydration


     Used to dry natural gas streams by removing water to prevent hydrate formation and pipeline corrosion.

  • Solvent and Chemical Drying


     Removes moisture from alcohols, esters, and other solvents in chemical and pharmaceutical processes.

  • Insulated Glass Units (IGU)


     Prevents fogging and condensation in double-glazed glass windows by adsorbing residual moisture inside the unit.

  • Petroleum Refining & Petrochemical Industry


     Dehydrates feedstocks and products in refinery operations, including cracking and reforming processes.

  • Paints and Coatings

    Used in formulations to enhance shelf life by adsorbing moisture-sensitive components.

  • Packaging Industry

    Acts as a desiccant in sealed containers and pouches to protect moisture-sensitive goods during transport and storage.

  • Plastic and Polymer Processing


     Dehydrates plastic resins like nylon and PET before extrusion or molding to ensure product quality.

  • Breathing Air Systems

    Purifies air by removing moisture to ensure safety and comfort in diving tanks and medical breathing systems.

Selective Adsorption Properties

What 4A Molecular Sieve Adsorbs:

  • Water (H₂O)
  • Methanol and ethanol
  • Hydrogen sulfide (H₂S)
  • Sulfur dioxide (SO₂)
  • Carbon dioxide (CO₂)
  • Ethylene and propylene
  • Straight chain hydrocarbons

What 4A Molecular Sieve Excludes:

  • Propane and larger hydrocarbons
  • Branched chain hydrocarbons
  • Aromatic compounds
  • Molecules with kinetic diameter >4Å

Why Choose OozeChem Molecular Sieve 4A?

Superior Quality Standards

  • Ultra-stable synthetic zeolite technology
  • Excellent capacity retention over multiple cycles
  • Consistent performance across temperature ranges
  • Rigorous quality control and testing

Industry Expertise

  • Leading supplier in Dubai, UAE, and Gulf region
  • Technical support and application guidance
  • Customized solutions for specific industrial needs

Reliable Performance

  • High mechanical strength and low attrition
  • Fast adsorption kinetics
  • Excellent thermal stability
  • Long service life with proper regeneration

Technical Advantages

Molecular Sieve 4A offers superior performance compared to traditional drying agents:

  • Precision Selectivity: 4Å pore size ensures selective adsorption
  • Deep Dehydration: Achieves extremely low moisture levels
  • Regenerable: Can be reactivated multiple times
  • Chemical Stability: Resistant to chemical degradation
  • Versatile Applications: Suitable for both gas and liquid phase processes

Why Partner with OozeChem?

  • Competitive pricing and flexible quantities
  • Fast delivery across UAE and Gulf region
  • Technical support and application optimization
  • Quality assurance and reliable supply chain
  • Comprehensive product documentation and certifications

Trust OozeChem for all your molecular sieve needs – where quality meets performance in every application.

Connect With OozeChem

  • +971 50 349 8566
  • +971 50 349 8566
  • info@oozechem.com
  • B.C 1303232, C1 Building AFZ, UAE