There are many ready-made chemical rust removers, but you can also use affordable home methods.
They are able to cope with the task just as well, especially if the item is not damaged very seriously.
One way to remove rust from a knife is to use a potato.
To do this, you need to stick a knife into a potato for 24 hours, and after the specified time, remove the device and wipe it with a rough cloth soaked in oil.
This method effectively deals with rusty plaque in cases of mild corrosion.
The oxalic acid found in potatoes reacts with the iron hydroxide, thereby removing it.
A similar process, by the way, occurs when using onions to clean steel from corrosion.
In this case, onion juice is applied to the blade, left for several hours, and then removed along with the peeling corrosion.
Earlier, BelNovosti shared advice on how to care for paintings.