Irreversible reaction

Liberation of iodine from the brine iodide by chlorine (R-101)

2NaI+Cl22NaCl+I2

Direction
Irreversible
Processes
1
Stated as
Fixed conversion
Heat of reaction
ΔH = -201,300 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
NaISodium iodide7681-82-5reactant-2
Cl2Chlorine7782-50-5reactant-1
NaClSodium chloride7647-14-5product2
I2Iodine7553-56-2product1

In the processes

  • Iodine from natural iodide brine by chlorine oxidation, air blowing-out and SO2 absorption (1000 t/a)Concept · not reviewed

    OXI · Liberation of iodine from the brine iodide by chlorine (R-101)2 NaI(aq) + Cl2(g) → 2 NaCl(aq) + I2(aq)

    Stated as
    Fixed conversion
    Phase
    liquid
    Element balance
    Balances in every element
    Conversion
    98 % of NaI (assumed: D-004: chlorine in slight excess (US 4,282,324 background) dosed to an oxidation-potential end point (US 1,897,031); 2 % of the iodide ASSUMED left unoxidised)
    Heat of reaction
    ΔH = -201,300 kJ/kmol at 298.15 K, as written (assumed: I-(aq) -55.2, Cl-(aq) -167.2, I2(aq) 22.6 kJ/mol (NBS tables, D-007))

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. D-004: chlorine in slight excess (US 4,282,324 background) dosed to an oxidation-potential end point (US 1,897,031); 2 % of the iodide ASSUMED left unoxidised

    For the conversion · cited by Iodine from natural iodide brine by chlorine oxidation, air blowing-out and SO2 absorption (1000 t/a)

  2. I-(aq) -55.2, Cl-(aq) -167.2, I2(aq) 22.6 kJ/mol (NBS tables, D-007)

    For the heat of reaction · cited by Iodine from natural iodide brine by chlorine oxidation, air blowing-out and SO2 absorption (1000 t/a)