I'm doing a conservation project regarding the deacidification of PEG treated waterlogged wood.
First, I did some analysis to identify sulfur acid compounds such as FeSO4, FeS, FeS2.
I chose SrCO3 and CaCO3 to make this acidic atmosphere to the neutral condition.
I understand the chemical reaction between sulfuric acid and Sulfur dioxide ion with SrCO3 or CaCO3.
But most of the iron-sulfur compound is FeSO4.
FeSO4 can react with SrCO3 or CaCO3 to produce SrSO4 or CaSO4(which is a stable compound) and FeCO3.
Could FeCO3 can directly or indirectly damage PEG treated waterlogged wood?
or can FeCO3 produce other acidic compounds in humid and oxygen conditions?
Thank you.
Dear Jaewan，
It is an interesting and meaningful question. As far as I know, you can find your answer from Fenton's reaction, where the Fe2+ and Fe3+ react with wood polymers, and finally, the wood substance degrades to acetic acid, glycolic acid (oxidative degradation), formic acid, and oxalic acid(acid hydrolysis).
The fenton's reaction would occur if you put the FeCo3 to the Waterlogged wood with even a little bit of acid.
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