Optical Brightening Agent in Liquid Form offers high affinity with good amount of exhaustion and levelling properties in high temperature exhaust applications. The Optical Brightening Agent offers good stability in peroxide bath and is suitable for use in alkaline peroxide bleach baths. Optical Brightening Agent also exhibits good stability to hard water, acid and alkali. Optical Brightening Agent in Liquid Form is miscible with water in all proportions.