Q:
Does hydrogen peroxide expire?
A:
Quick Answer
Hydrogen peroxide, which is a weak acid, does expire. If the container remains sealed, it retains its full strength for about one year. However, once the container has been opened, hydrogen peroxide lasts for only 30 to 45 days.
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As soon as hydrogen peroxide is exposed to air, a chemical reaction begins, and the liquid starts changing into plain water. Every molecule of hydrogen peroxide has two hydrogen atoms and two oxygen atoms.
Hydrogen peroxide has many uses, such as bleaching textiles and wood pulp, making rocket propellant, and preventing infections. The medicinal hydrogen peroxide poured on injuries has a strength of 3 percent; anything above 8 percent is corrosive to the skin.
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Q:
What reacts with hydrogen peroxide?
A: Hydrogen peroxide can act as an oxidizing or reducing agent at different pH values, enabling its reaction with both metals and nonmetals, such as iron and ... Full Answer >Filed Under: -
Q:
What is hydrogen peroxide used for?
A: Hydrogen peroxide is used as a bleaching agent and an oxidizer. It is often found in toothpaste formulas. A solution is also used as a disinfectant in woun... Full Answer >Filed Under: -
Q:
How can hydrogen peroxide be used for cleaning?
A: A solution of 3 percent hydrogen peroxide, or sodium percarbonate (a powdered form of hydrogen peroxide) mixed with water can be poured into a spray bottle... Full Answer >Filed Under: -
Q:
What products contain benzoyl peroxide?
A: Benzoyl peroxide is found in skin care products, such as Clearasil, Benzac, Acnigel, Clearskin, Pacnex, Peroderm, Triaz, Fostex and ZoDerm. It is used as a... Full Answer >Filed Under:
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