1. A macroporous weakly acidic acrylic acid type resin is a type of ion exchange resin used in various purification and separation processes. Here's a breakdown of the terms:
Macroporous: This refers to the structure of the resin beads. They have a large pore size throughout, allowing for better penetration of fluids and larger molecules.
Weakly acidic: The resin contains carboxylic acid groups (COOH) that can exchange cations (positively charged ions). However, these groups have a lower affinity for cations compared to strongly acidic resins.
Acrylic acid type: The resin is made from acrylic acid, a monomer that polymerizes to form the resin bead structure.
2. Here are some common applications of macroporous weakly acidic acrylic acid resin:
Water treatment: It can be used to remove hardness minerals like calcium and magnesium, as well as alkalinity (bicarbonate and carbonate ions) from water. This is useful in applications like boiler feed water preparation, rinsing after rev…