SelFHeating Shaving Creams The heat source in the new self-heating shaving creams such as Gillette's "The Hot One" is s. chemical reaction involving hydrogen peroxide and a reducing agent. A small polyethylene bottle filled with hydrogen peroxide is placed inside the aerosol can. This bottle i , then surrounded with the reducing agent, shaving cream, and a propellant. Pushing the button on the can releases lather, reducing agent, and hydrogen peroxide. Reaction of the latter two reagents liberates heat immediately.
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Journal of Chemical Education
