Tritiozine is primarily used as a biocide in industrial water treatment systems. It effectively controls the growth of bacteria, fungi, and algae in cooling towers, paper mill systems, and metalworking fluids. Its broad-spectrum antimicrobial activity makes it suitable for preventing biofouling and maintaining system efficiency. Due to its stability under varying pH and temperature conditions, it is often preferred in harsh industrial environments. Tritiozine is also employed in the preservation of aqueous-based products such as paints, adhesives, and latex emulsions to extend shelf life by inhibiting microbial degradation.