Also known as known as SDIC, this is a granulated form of chlorine that is best administered for laundry. SDIC is easy to handle and has a one year shelf life. Unlike sodium hypochloride (commonly know as cholorox), the dosages per wash is less – SDIC is 60% pure. The granules dissolve totally upon contact with water, providing full bleaching properties. Repeated test have been carried out to show that the linen retaines it’s tensile strength (non-tear) longer than sodium hypochloride.