Palembang Keris

[A. G. Maisey]

Maybe "vinegar essence" is what in Australia is named as acetic acid.

Household vinegar is only about 5% or so acid, it costs me about AUD1.25 per liter. With changes of vinegar along the way, over a week or so, I would use maybe 2 liters of vinegar to clean a fairly heavy incrustation of rust from a blade.

Acetic acid comes in various strengths, all the way through to about 80% acid.

I have no idea at all where I could buy acetic acid. We used to use it to burn warts off --- dab a bit on the wart with the end of a match stick, & that was bought from a pharmacist.

[Rick]

When I used to do black and white photography, during the developing process, after the paper print had been developed enough you then put the print into what is called Stop Bath to arrest the process before the picture became too dark. The stop bath was very strong acetic acid. I suppose photography supply shops are few and far between in this age of digital.

[Sajen]

Originally Posted by A. G. Maisey

Maybe "vinegar essence" is what in Australia is named as acetic acid.

It's 25% strong, you dilute it to 5% vinegar.

[sirek]

Electrolytic derusting is a safe, effective, and non-destructive method for removing iron oxide from steel and iron using a 12V DC power supply (like a car battery charger), water, washing soda, and a sacrificial anode