Some people i know even managed to find pure oxalic acid in pharmacies.
Oxalic acid for removing rust from metal roof.
The typical percentage of acid in a rust.
You can remove rust using household ingredients such as aluminum foil and a mild acid like white vinegar or with special rust removing chemicals.
When shopping offline for oxalic acid make sure to visit all your local hardware stores and janitorial equipment shops.
But with some time and effort you ll be able to remove rust from many metal surfaces.
If none of the other methods work for rust removal oxalic acid is a commercial rust remover that will dissolve rust quickly.
The effects of oxalic acid as a remover of iron iii oxide are well known.
Put on your goggles and rubber gloves.
Saturate the shingles especially those with rust stains.
Step 1 removing the rust.
Removing rust with oxalic acid.
Spray the roof with the vinegar.
In fact entire studies were done to see just.
Degrease clean and dry tools.
Work your way across the roof from left to right and top to bottom.
With any rust removing method it will take some patience and some elbow grease to remove the rust.
The rust should just drain away.
Acids including nitric acid acetic acid white vinegar phosphoric acid hydrochloric acid sulfuric acid muriatic acid oxalic acid and citric acid.
You ll need a fairly concentrated solution of about 1 pound of acid per gallon of water.
The simplest way to get rid of rust is to use oxalic acid.