Many people often have questions when purchasing molecular sieves. Which molecular sieve should I choose?
1. We often receive inquiries from customers about whether to use 3A molecular sieve or 4A molecular sieve? What's the difference between them?
In fact, when we purchase molecular sieves, we do not specify which molecular sieve is better, but only which molecular sieve is more suitable for our use. The main function of molecular sieve is to sieve a substance molecule through the pore size of its crystal internal structure. When we meet the process requirements of water removal, which is better, molecular sieve 3A or molecular sieve 4A?
First of all, this question should be specifically distinguished from the substances to be dehydrated. The molecular diameter of the substances to be dehydrated (dried) should be the size of the molecular diameter. If the dynamic molecular diameter of the substances to be dehydrated (dried) is more than 3nm and less than 4nm, we can only use molecular sieve 3A to remove water from such substances. Because if molecular sieve 4A is used, it will not only absorb the water in the material, but also absorb the materials that need dehydration, which is the first case.
Another situation is that if the kinetic diameter of the material to be dehydrated (dried) is greater than 4A, molecular sieve 4A is generally used, because molecular sieve 4A has a stronger ability to absorb water than molecular sieve 3A.