Molecular Sieve 3A is available in bead and pellet forms. This highly selective adsorbent is crucial for applications requiring precise removal of water and other small polar molecules. Molecular Sieve 3A is a potassium aluminosilicate with a pore size of approximately 3 angstroms (0.3 nanometers). This specific pore size allows it to selectively adsorb molecules smaller than 3 angstroms, primarily water and other small polar molecules, while excluding larger molecules like unsaturated hydrocarbons. Molecular Sieve 3A is commonly available in bead and pellet forms, each offering distinct advantages: