The list of deleterious materials has always remained fluid because as technology advances new products come onto the market and medical research establishes new risks to health. Clauses in contracts and appointment documents often refer to compliance with 'Good Practice in the selection of construction materials'.he list of deleterious materials has always remained fluid because as technology advances new products come onto the market and medical research establishes new risks to health. Clauses in contracts and appointment documents often refer to compliance with 'Good Practice in the selection of construction materials'.
Hydrogen peroxide is a weak acid. Generally, acids distinguishable by the hydrogen proton, while bases are generally anything with a hydroxide. For instance, hydrochloric acid, or HCl, can be distinguished by the H+ bonded with Cl-. NaOH on the other hand, is a bond between Na+ and OH-.
Hydrogen peroxide is a chemical compound with the formula H 2O 2. In its pure form it is a colourless liquid, slightly more viscous than water; however, for safety reasons it is normally used as an aqueous solution. Hydrogen peroxide is the simplest peroxide (a compound with an oxygen-oxygen single bond) and finds use as a strong oxidizer, bleaching agent and disinfectant. Concentrated hydrogen peroxide, or ' high-test peroxide ,' is a reactive oxygen species and has been used as a propellant in rocketry.