Chemistry Forum

I have to stop the ozonation of the wastewater with sodium thiosulfate. I am asking for a balance:

O₃ + Na₂S₂O₃ = ?

Thank you kindly.

is this the reaction to be balanced?
Na₂S₂O₃ + O₃ = SO₃ + Na₂O₂ 📖

balanced reaction:
3 Na₂S₂O₃ + 5 O₃→6SO₃ + 3 Na₂O₂ 📖

However, please wait for confirmation from someone more experienced than me.

I am not sure about the products. Thank you very much

Please dont write products if you don't know what is going on.

Thiosulfat will be go to sulfate

S₂O₃ 2- + 10 OH- => 2 SO₄ 2- + 5 H₂O + 8 e-

Ozon will be to normal oxygen

O₃ + H₂O + 2 e- => O₂ + 2 OH-

Thank you very much ))) Can you help me and write the equation in nonionic form?

Na₂S₂O₃+O₃+?=Na₂SO₄+ O₂+?

I think with the given equations you can develop by yourself. Add both equations so that the electrons will be erased,.

It's not easy for me, I tried for a long time. I'm not a chemist, I is imposiible for me. Please help

Thiosulfat will be go to sulfate

S₂O₃ 2- + 10 OH- => 2 SO₄ 2- + 5 H₂O + 8 e-

Ozon will be to normal oxygen

O₃ + H₂O + 2 e- => O₂ + 2 OH-

Second equation multiply by 4
4 O₃ + 4 H₂O + 8 e- => 4 O₂ + 8 OH-

Addition
S₂O₃ 2- + 10 OH- +4 O₃ + 4 H₂O + 8 e- => 2 SO₄ 2- + 5 H₂O + 8 e- + 4 O₂ + 8 OH-

Simplefy
S₂O₃ 2- + 2 OH- + 4 O₃ => 2 SO₄ 2- + H₂O + 4 O₂

Add Na+

Na₂S₂O₃ + 2 NaOH + 4 O₃ => 2 Na₂SO₄ + H₂O + 4 O₂

Finished

O₃ + Na₂S₂O₃
From this equation, the thiosulphate from sodium thiosulphate (Na₂S₂₀₃) will go to sulfate.
S₂O₃ 2- + 10 OH- → 2 SO₄ 2- + 5 H₂O + 8 e-
The ozone in the equation (O₃) will be converted to normal Oxygen O₂
4 (O₃ + H₂₀ + 2 e- → O₂ + 2 OH-)
By adding both these equations. We get:
S₂O₃ 2- + 10 OH- + 4 O₃ + 4 H₂O + 8 e- → 2 SO₄ 2- + 5 H₂O + 8 e- + 4 O₂ + 8 OH-
Further simplification would be:
S₂O₃ 2- + 2 OH- + 4 O₃ → 2 SO₄ 2- + H₂O + 4 O₂
After the addition of sodium, the products are sodium sulfate, water, and Oxygen.
The final balanced equation is:
Na₂S₂O₃ + 2 NaOH + 4 O₃ → 2 Na₂SO₄ + H₂O + 4 O₂

Why do you copy, the same I wrote above.

Did you missed it as well????

I solved it and saw you added already but i don't know if someone already answered any question I can't.

I am not sure about the products.