Give the name or formula of two products of the reaction between PCl5 and ethanol. 

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kjcdb8er's profile pic

kjcdb8er | Teacher | (Level 1) Associate Educator

Posted on

Ethanol reacts with phosphorus pentachloride at 23 oC to form hydrogen chloride, ethyl chloride (chloroethane) and phosphoryl chloride.

The chemical reaction is:
C2H5OH  +       PCl5     ==>     C2H5Cl +       POCl3   +       HCl

Ethanol         Phosphorus        Ethyl            Phosphorus     Hydrogen

.                  Pentachloride      Chloride       Trichloride          Chloride

gsenviro's profile pic

gsenviro | College Teacher | (Level 1) Educator Emeritus

Posted on

The balanced chemical equation for the reaction between ethanol and phosphorous (V) chloride is:

`C_2H_5OH + PCl_5 -> C_2H_5Cl + POCl_3 + HCl`

Here, ethanol reacts with phosphorous chloride to produce ethyl chloride (also known as chloroethane), phosphorous trichloride and hydrochloric acid. This reaction takes place at 23 degrees Celsius. 

This is a balanced chemical reaction since the number of atoms of each species is same on both sides (that is, reactants and products) of the reaction. For example, there are 2 atoms of carbon on the reactant side. Similarly, there are 2 atoms of carbon on the product side and hence the reaction is balanced in terms of carbon. Similarly, we have 6 atoms of hydrogen on both the reactant and product side of the equation. We can check for balance of other atoms as well.

Hope this helps. 


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