Effects of Sodium Hypochlorite (NaClO3-) and Sodium Bromide (NaBr) on Hair and Skin

The purpose of this experiment was to determine if exposure time had any adverse effects on hair and skin by sodium hypochlorite or sodium bromide. A further purpose was to test if sodium hypochlorite and sodium bromide affected hair and skin differently. It was hypothesized if hair and skin were exposed to sodium hypochlorite for the longest amount of time, 45 minutes, then hair will be at its weakest and skin will be at its lowest mass. To perform this experiment, six petri dishes were filled with a water and sodium hypochlorite solution (3 ppm) and hair or skin was added to them. The hair or skin was then allowed to soak for a period of 15, 30, or 45 minutes. Hair was then tested for tensile strength (N) and hair for mass (g) loss. The same was repeated for a solution of water and sodium bromide (3 ppm). After running the trials, the data was analyzed using an analysis of variance test. This test concluded that there was no significant difference between the effects of sodium hypochlorite and sodium bromate or exposure time in relation to the strength of hair and the mass of skin.

Research Done By:

Jordan Hess
Warren Mott

Amanda Shepard
Warren Woods Tower