At NINGBO INNO PHARMCHEM CO.,LTD., we specialize in providing advanced materials that drive efficiency and purity in industrial processes. One such material, the 13X molecular sieve, owes its exceptional performance to a precisely engineered characteristic: its pore size of approximately 10 Angstroms (Å). This specific pore dimension is fundamental to its ability to selectively adsorb various molecules, making it an invaluable tool in a wide array of gas purification and drying applications.

Molecular sieves are crystalline aluminosilicates with a highly ordered, porous structure. The term 'molecular sieve' aptly describes their function: they selectively adsorb molecules based on their size and polarity, acting much like a molecular filter. The '13X' designation refers to a specific type of zeolite with a larger pore opening compared to other common molecular sieves like the 3A, 4A, and 5A types. This larger pore size, at roughly 10 Å, allows the 13X sieve to adsorb molecules that are too large to pass through the smaller pores of other sieve types, as well as all molecules that can be adsorbed by the A-type sieves.

The significance of this 10 Å pore size is most evident in its application for removing larger molecules and, critically, for the co-adsorption of both water (H2O) and carbon dioxide (CO2). Many industrial gases, especially those used in cryogenic air separation, contain these common impurities. Water vapor can freeze at low temperatures, causing blockages and damage to sensitive equipment. Carbon dioxide, while not freezing as readily, also needs to be removed to achieve high product purity. The 13X molecular sieve's ability to effectively adsorb both simultaneously makes it a highly efficient solution for preparing feed streams for these demanding processes. This makes it a preferred desiccant for industrial gas drying and purification.

The selectivity of the 13X sieve is not solely determined by pore size; the electrostatic field within the pores, influenced by the exchangeable cations (typically sodium ions), also plays a crucial role in attracting polar molecules. This combination of pore size and electrostatic attraction allows the 13X sieve to exhibit a strong affinity for molecules like CO2, which has a significant quadrupole moment, and polar water molecules.

NINGBO INNO PHARMCHEM CO.,LTD. ensures that our 13X molecular sieves are manufactured to precise specifications, guaranteeing a consistent 10 Å pore diameter and high adsorption capacity. This meticulous attention to detail is what enables our customers to achieve optimal results in applications such as air separation, natural gas processing, and the drying of various industrial gases. By understanding the fundamental science behind the 10 angstrom pore size molecular sieve, industries can better leverage its capabilities for enhanced purity and operational efficiency.