Luristan iron sword need advice for preservation.

[Will M]

The main concern is moisture and it getting under the corrosion and accelerating it. Never use water as it begins the corrosion process and will flake off more material. The aim is to dry the object on low heat then seal it with something like Renaissance wax. Use a brush and apply the wax liberally and warm it up until the wax melts, then let cool. Or you can pay the money for a professional conservator.

[Lee]

Unfortunately, I cannot find the detailed 'recipe' at the moment, but once I followed a procedure of soaking a flaking sword in alkalinized (using sodium hydroxide) distilled water (refreshed every couple of days when pH dropped below, if I remember correctly, 11) for several weeks (until the pH stabilized,) followed by three day long soaks in anhydrous isopropyl alcohol followed by a couple of soaks in acetone and then a coating with paraloid B-72 as a sealer. Several years later, this still appears to have stabilized the sword.

[Cerjak]

many thanks for all these advices, I will expand on the leads given here.
Again many thanks and Happy New Year to all of you.

[Bob A]

Electrochemical restoration?

https://link.springer.com/article/10...008-009-0876-4