What you claim is false, dangus. It would happen only if it is growing product, and then only in the new growth. The Molecularly bound carbon does not get unbound from the cellular structure of the flax and somehow exchange by CO2. That is simply not possible.
Even if you were to soak the cloth in a hydrocarbon liquid such as Carbon tetrachloromethane or even Carbon tetrachloroethylene, which were used in Dry Cleaning, it does not happen. The bound carbons are BOUND in molecules that would have to dissociate and then recombine with new carbon atoms in new C-12/C-14 rations. That just does not happen and still remain the same material in the same form, i.e.woven Flax Linen.
There is very little fire damage on the Shroud in comparison to the overall body of the Shroud. To skew the date from first Century to 13th century, the amount of REPLACED carbon would have to be almost 75% added to the extant base cloth if it were added soot. Less than 3% of the shroud is charred and of that charring it is original Shroud material. You do not get atomic changes merely by burning, a chemical process. Otherwise, the burning of the sample to a Carbon Gas in the C-14 testing could not work.
The C-14 Sample that was tested was not in anyway charred, nor was there any soot on it. Examination under microscopes all the way down to the electron microscopic level showed NO CONTAMINATION from extraneous carbon from microscopic organisms or their waste products.
So, no, you certainly cannot wash the soot away.
And yes, you can wash soot away. It is a particulate matter that is easily washed out of cloth. C-14 testers do it all the time as part of the sample preparation. They also frequently test charcoal from fire pits where sacrifices were burned. . . to see when the sacrifices died.
Besides the burning of the Shroud occurred because MELTED SILVER dropped through one multiple folded corner from the sealed SOLID SILVER reliquary it was stored in. The SOOT that would have contaminated the Shroud would have come from carbon FROM THAT CORNER OF THE SHROUD, made up of carbon from the burning FLAX. The reliquary was quickly carried out and the fire on the Shroud quenched in water. Ergo, the carbon C-12/C-14 ratio would remain the same as when the Flax was grown. . . and would date the same as the unburnt flax of the rest of the Shroud.
You’re forgetting the catalytic effect of extremely high temperatures,
And go look at the shrowd: the fire damage is VERY extensive.
Also: You’re completely forgetting that radiation is logorythmic, not arithmatic.
Look, I’m not an expert on C14 dating. But I know what the experts said prior to the realization that they were looking at a patch. And I admitted that fact trumps all else.