WASTEWATER Glycidyl-trimethylammonium chloride modified kraft lignin Glycidyl-trimethylammonium chloride-modified kraft lignin is a cationic kraft lignin with the charge density of 0.6 – 1.1 meq/g and molecular weight of 3000-5000 g/mol. It is a water soluble macromolecule in water in a wide pH range. CHECK OUT