What are the best reducing agents

Oxidizing agents - reducing agents

What are oxidizing agents, what are reducing agents?


Whether a substance acts as a reducing agent or an oxidizing agent essentially depends on two things:

  1. which oxidation level does the fabric have and in which does it feel particularly comfortable? and
  2. what is the reactant?

It is therefore a matter of recognizing which reaction partner accepts electrons and which releases them.


Oxidizing agent easily absorb electrons, as they are coveted by another electron Noble gas configuration to reach. Other ions with high oxidation numbers are also good oxidizing agents because they “lack a lot of electrons”. e.g.


Permanganate: KMnO4


Chromates: K2CrO4


Iodates: Ca (JO3)2


Lead (IV) oxide: PbO2


Nitrates: ENT3, KNO3


Nitric acid - potassium nitrate

Noble metals (Cu2+, Ag+), which occur as ions, are also good oxidizing agents. Gold and platinum are so precious that it is only possible to bring them into solution under drastic conditions. Since they are also very expensive, they do not play a role as oxidizing agents.

Oxygen, hydrogen peroxide and ozone (O3) are also good oxidizing agents.


Reducing agent give up their electrons very easily. Examples of this are base metals. The less noble metal is the better reducing agent.

Substances that have very low oxidation numbers are also reducing agents such. B .:


Hydrides: LiAlH4, Close


Sulphides: H.2S, well2S.

Sulphites: Na2SO3, H2SO3 as well as SO2


Thiosulfate: S.2O32-