How do you make iron chloride solution?

You can make iron chloride solution by reacting iron with hydrochloric acid (HCl). This reaction produces iron chloride and hydrogen gas.

Here's a breakdown of the process:

1. React Iron with Hydrochloric Acid: The core of making iron chloride involves the chemical reaction between iron (Fe) and hydrochloric acid (HCl). The type of iron chloride produced (Iron(II) chloride or Iron(III) chloride) depends on the reaction conditions and the relative amounts of reactants. The video suggests that the reaction produces "iron to chloride" likely referring to a mixture of Iron(II) and Iron(III) chloride, as both can be formed.

2. Effervescence (Hydrogen Gas Production): During the reaction, you'll observe effervescence, which is the release of hydrogen gas (H₂) as a byproduct.

Here's the simplified chemical equation for the formation of Iron(II) chloride:

Fe(s) + 2 HCl(aq) → FeCl₂(aq) + H₂(g)

Where:

• Fe(s) is solid iron
• HCl(aq) is hydrochloric acid in aqueous solution
• FeCl₂(aq) is iron(II) chloride in aqueous solution
• H₂(g) is hydrogen gas

Iron(III) chloride can also be produced, especially with excess hydrochloric acid and in the presence of an oxidizing agent (like air):

2 Fe(s) + 6 HCl(aq) + (3/2) O₂(g) -> 2 FeCl₃(aq) + 3 H₂O(l)

Important Safety Precautions:

• Hydrochloric acid is corrosive. Wear appropriate personal protective equipment (PPE), including gloves, eye protection, and a lab coat.
• The reaction produces hydrogen gas, which is flammable. Perform the reaction in a well-ventilated area, away from any open flames or sources of ignition.
• Always add acid to water slowly, and never the other way around, to prevent rapid boiling and splashing.