Generating SO2 gas

[Mr.mister]

Will bubbling Carbon dioxide gas into sulphuric acid produce sulfur dioxide?
The CO2 produced is generated by the addition of baking soda to sulphuric acid.

 

[Mr.mister]

Will bubbling Carbon dioxide gas into sulphuric acid produce sulfur dioxide?
The CO2 produced is generated by the addition of baking soda to sulphuric acid.

The 98% sulphuric acid that is used to bubble CO2 through will turn carbon black as SO2 is produced.

 

[Yggdrasil]

Will bubbling Carbon dioxide gas into sulphuric acid produce sulfur dioxide?
The CO2 produced is generated by the addition of baking soda to sulphuric acid.

What do you intend to use the SO₂ for?
Dropping Gold?

Dripping HCl on SodiumMetaBisulfite SMB will release Sulfur dioxide gas with much less risk than your proposal.
Burning Sulfur too, that will give practically no waste.

 

[Mr.mister]

yes, my intention is to selectively precipitate gold from a solution of mixed mineral salts, by using the materials I have on hand.
Waste is the least of my concerns, I can still unclog drains with it, sorry.

 

[Yggdrasil]

yes, my intention is to selectively precipitate gold from a solution of mixed mineral salts, by using the materials I have on hand.
Waste is the least of my concerns, I can still unclog drains with it, sorry.

Well that is if you can get the SO₂ to avoid being absorbed by the Sulfuric.
Carbon into Sulfuric acid produces CO₂, SO₂ and water.

So I'd say the SMB+HCl method seem better or even SMB directly which most use.