What is Cu2Cl2? Important knowledge about Cu2Cl2.

1. Definition of Cu₂Cl₂:

1.1 Names:

• Common name: Copper(I) chloride or Copper(I) chlorate.
• English name: Copper(I) chloride.

1.2. Atomic mass:

• Copper: 63.546 u
• Chlorine: 35.453 u

1.3. Molecular mass:

• The standard atomic weight of a Cu₂Cl₂ molecule is 194.456 u.

1.4. Ion structure:

• Cu₂Cl₂ consists of 2 Cu+ ions and 2 Cl- ions.

2. Properties of Cu₂Cl₂:

2.1. Physical properties:

• State: solid
• Color: white or grayish-white
• Odor: odorless
• PH level: undefined

2.2. Chemical properties:

• Cu₂Cl₂ is soluble in water, ethanol, and acetone. It is quite stable towards oxidation from the air, but will be oxidized by strong acids or by chlorine water.

3. Common chemical equations of Cu₂Cl₂:

   • Cu₂O + 2HCl -> Cu₂Cl₂ + H₂O
   • Cu₂Cl₂ + 2Cl- -> 2CuCl
   • Cu₂Cl₂ + H₂ -> 2Cu + 2HCl

4. Synthesis of Cu₂Cl₂:

4.1 Laboratory synthesis:

• Place copper in a solution containing chlorine ions and heat it, Cu₂Cl₂ will evolve.
• Heating Cu₂O in a stream of chlorine gas also yields Cu₂Cl₂.

4.2 Industrial synthesis:

• Cu₂Cl₂ is produced by causing a reaction between copper, chlorine and ammonium chloride.