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|2020-06-30||FL||Narrow Range Bar||Range Contraction|
|2020-06-30||FL||Stochastic Buy Signal||Bullish|
|2020-06-30||FL||Non-ADX 1,2,3,4 Bearish||Bearish Swing Setup|
|2020-06-30||KMAX||Calm After Storm||Range Contraction|
|2020-06-30||KMAX||Narrow Range Bar||Range Contraction|
|2020-06-30||MDL||180 Bullish Setup||Bullish Swing Setup|
|2020-06-30||MDL||Calm After Storm||Range Contraction|
|2020-06-30||MDL||Stochastic Sell Signal||Bearish|
|2020-06-30||MDL||Non-ADX 1,2,3,4 Bullish||Bullish Swing Setup|
|2020-06-30||MN||Bollinger Band Squeeze||Range Contraction|
|2020-06-30||NEO||Stochastic Sell Signal||Bearish|
|2020-06-30||NEO||Slingshot Bullish||Bullish Swing Setup|
|2020-06-30||NEO||Narrow Range Bar||Range Contraction|
A reducing agent (also called a reductant or reducer) is an element (such as calcium) or compound that loses (or "donates") an electron to another chemical species in a redox chemical reaction. Since the reducing agent is losing electrons , it is said to have been oxidized.
If any chemical is an electron donor (reducing agent), another must be an electron recipient (oxidizing agent). A reducing agent is oxidized because it loses electrons in the redox reaction.
Thus, reducers (reducing agents) "reduce" (or, seen another way, are "oxidized" by) oxidizers (oxidizing agents), and oxidizers "oxidize" (that is, are "reduced" by) reducers.
In their pre-reaction states, reducers have more electrons (that is, they are by themselves reduced) and oxidizers have fewer electrons (that is, they are by themselves oxidized). A reducing agent typically is in one of its lower possible oxidation states and is known as the electron donor. Examples of reducing agents include the earth metals, formic acid, and sulfite compounds.
For example, consider the overall reaction for aerobic cellular respiration:
C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(l)The oxygen (O2) is being reduced, so it is the oxidizing agent. The glucose (C6H12O6) is being oxidized, so it is the reducing agent.
In organic chemistry, reduction more specifically refers to the addition of hydrogen to a molecule, though the aforementioned definition still applies. For example, benzene is reduced to cyclohexane in the presence of a platinum catalyst:
C6H6 + 3 H2 → C6H12In organic chemistry, good reducing agents are reagents that deliver H2.
Historically, reduction referred to the removal of oxygen from a compound, hence the name 'reduction'. The modern sense of donating electrons is a generalisation of this idea, acknowledging that other components can play a similar chemical role to oxygen.