Chlorine bleach is typically a solution of sodium hypochlorite (NaClO) in water, with small amounts of other chemicals added to improve its stability and cleaning power. The sodium hypochlorite is a strong oxidizing agent that breaks down dirt, grease, and stains by breaking down the chemical bonds that hold them together. The free chlorine atoms also kill bacteria and other microorganisms by disrupting their cell membranes and damaging their DNA.

Other chemicals that may be added to chlorine bleach include:

- Sodium hydroxide (NaOH) to help stabilize the pH of the solution and prevent it from becoming too acidic.

- Calcium hypochlorite (Ca(ClO)2) to increase the chlorine content of the solution.

- Sodium polyacrylate to help thicken the solution and prevent it from evaporating too quickly.

- Fragrances to make the bleach more pleasant-smelling.

Chlorine bleach is a powerful cleaning product, but it is also corrosive and can be harmful to the skin and eyes. It is important to read and follow the safety instructions on the product label before using it.