These powerful tablets utilize sodium troclosene as the active ingredient and are bleach free. Sodium troclosene is much more stable than sodium hypochlorite (bleach), and releases chlorine at a much slower rate which means that Cdiff Disinfectant Tablets produce a solution that maintains disinfecting power for 7 days, in a sealed container, and 24 hours in an open container vs. bleach solutions that become inactive after a day. With a pH of around 6, they are the perfect disinfectant for virtually any surface, including floors, in hospitals, medical offices, dental offices, clinics, day care centers, nursing homes, veterinary clinics, and more.