Irreversible reaction

Reduction of copper(II) chloride by copper metal (comproportionation)

CuCl2+Cu2CuCl

Direction
Irreversible
Processes
1
Stated as
Rate law
Heat of reaction
ΔH = -54,300 kJ/kmol (one process)
Element balance
Checked: balances
As the processes state itStoichiometry, conversions, heats of reaction and catalyst windows are taken from each process's files with their provenance. The build checks only that each process's equation balances in every element, from the process's own component formulas; it does not check the numbers. A process's design maturity applies to them.

Species

SpeciesNameCASRoleCoefficient
CuCl2Copper(II) chloride7447-39-4reactant-1
CuCopper7440-50-8reactant-1
CuClCopper(I) chloride7758-89-6product2

In the processes

  • Copper(I) chloride by semi-batch chlorination of copper in brine, dilution precipitation and filter-drying (300 t/a)Concept · not reviewed

    COMP · Reduction of copper(II) chloride by copper metal (comproportionation)CuCl2 + Cu → 2 CuCl

    Stated as
    Rate law
    Phase
    liquid
    Element balance
    Balances in every element
    Heat of reaction
    ΔH = -54,300 kJ/kmol at 298.15 K, as written (given: Hess sum at 298.15 K: 2 x dHf CuCl(s) -137.2 - dHf CuCl2(s) -220.1 kJ/mol (chemicals 1.5.2, packaged CRC table, SRC-10); heats of solution left out (D-005))
    Rate law
    basis: volume; driving: concentration; form: power_law; k: {"A":"2.476e4","Ea":50000}; orders: {"CU":1,"CUCL2":1}; temperature range: 313.15 – 373.15 (assumed: ASSUMED effective rate (D-005): set so that the copper(II) left after the post-reaction is about 0.5 % of the copper, the lower end of the 0.5-2 % that US 4 582 579 A leaves after its copper reduction step; no open rate constant found (2026-11-06))

Sources

What the processes cite for this reaction, each source once: for the reaction itself, its conversion, its heat of reaction or its catalyst. As the processes write them; DOIs, US patent numbers and web addresses are linked.

  1. US 4 582 579 A (Hughes Aircraft, 1986), description: CuCl2 in concentrated HCl reduced by copper at 40-55 C under nitrogen until 98-99.5 % of the copper(II) is reduced

    For the reaction · cited by Copper(I) chloride by semi-batch chlorination of copper in brine, dilution precipitation and filter-drying (300 t/a)

  2. Hess sum at 298.15 K: 2 x dHf CuCl(s) -137.2 - dHf CuCl2(s) -220.1 kJ/mol (chemicals 1.5.2, packaged CRC table, SRC-10); heats of solution left out (D-005)

    For the heat of reaction · cited by Copper(I) chloride by semi-batch chlorination of copper in brine, dilution precipitation and filter-drying (300 t/a)