Navigating the world of desiccants can be complex, especially when choosing the right molecular sieve for a specific task. At NINGBO INNO PHARMCHEM CO.,LTD., we aim to demystify these essential materials. As a leading manufacturer and supplier, we provide a comprehensive range of molecular sieves, including 3A, 4A, 5A, and 13X types. Understanding their distinct properties is key to optimizing your industrial processes.

What Differentiates Molecular Sieves?

The primary distinguishing factor among molecular sieves is their pore size, measured in angstroms (Å). This pore diameter dictates which molecules can enter the sieve's structure for adsorption. Additionally, the cation composition within the zeolite framework influences their selectivity and performance characteristics.

1. Type 3A Molecular Sieve

  • Pore Size: 3 Å (0.3 nm)
  • Adsorbed Molecules: Primarily water; excludes larger molecules like hydrocarbons and alcohols.
  • Key Applications: Ideal for the dehydration of unsaturated hydrocarbons (e.g., ethylene, propylene, butadiene) and polar compounds like methanol and ethanol. It’s also used for drying saturated hydrocarbons and in insulating glass units where it prevents condensation. If you're looking to buy 3A molecular sieve for specialized drying tasks, NINGBO INNO PHARMCHEM CO.,LTD. offers high-quality options.

2. Type 4A Molecular Sieve

  • Pore Size: 4 Å (0.4 nm)
  • Adsorbed Molecules: Water, carbon dioxide, ammonia, and other molecules with kinetic diameters up to 4 Å.
  • Key Applications: The most versatile type, widely used for the static drying of gases and liquids. It's essential in petrochemicals for drying natural gas and saturated hydrocarbons, in refrigeration systems for moisture removal, and in protecting sensitive items like pharmaceuticals and electronics from moisture. Consider our competitive price when you need to purchase 4A molecular sieve.

3. Type 5A Molecular Sieve

  • Pore Size: 5 Å (0.5 nm)
  • Adsorbed Molecules: Normal paraffins, larger hydrocarbons, and molecules with kinetic diameters up to 5 Å.
  • Key Applications: Primarily used for separating normal paraffins from branched-chain and cyclic hydrocarbons in the petrochemical industry. It's also used in air separation for purifying gas streams and in various industrial drying applications where larger molecule adsorption is needed.

4. Type 13X Molecular Sieve

  • Pore Size: 10 Å (1.0 nm)
  • Adsorbed Molecules: Larger molecules, including carbon dioxide, sulfur compounds (H2S, mercaptans), and nitrogen oxides.
  • Key Applications: Ideal for bulk removal of water and CO2 from gas streams (e.g., air separation), natural gas sweetening, and removal of trace impurities from gas and liquid streams. It's a robust option when dealing with a broader range of contaminants.

Your Trusted Molecular Sieve Partner

As a dedicated supplier, NINGBO INNO PHARMCHEM CO.,LTD. ensures that each molecular sieve type meets stringent quality standards. We understand that the right desiccant choice can significantly impact your operational efficiency and product quality. Whether you need to order bulk quantities or require technical guidance, our team is ready to assist.

Contact NINGBO INNO PHARMCHEM CO.,LTD. today to explore our range of molecular sieves and find the optimal solution for your specific industrial needs.