"It is suitable for dark woods such as oak ... Thanks to the oxalic acid contained in these foods, the burnt food remains will dissolve. BUND recommends using lemon peel to clean crockery.

Some readers asked if the oxalic acid would hurt a septic tank and the biologic activity inside it. Well, we know for a fact it won’t help it! The safest thing to do when cleaning anything using ...

the name comes from using oak and other wood to tan hides into leather. Whether you’re dealing with a stained tabletop or stained paneling, it’s often possible to apply oxalic acid to reverse ...

never use metal with oxalic acid. Apply it to the stains with a paintbrush. Let it stand for a half-hour or so and wipe it off with a clean, white cloth dampened with white vinegar to remove any ...

I would start with oxalic acid ... At the end of the waiting period, take a clean cotton swab and try to suck up the droplet of acid you put on the counter. If the tip of the new cotton swab ...

A: Rust stains on concrete seem to respond best to acids of various types. The classic treatment is oxalic acid, which is sold at some paint stores for use as a wood bleach. It is often sold in ...