oxalic acid

Then use oxalic acid to bleach the wood in the dark areas.

There was a bottle of oxalic acid on the table.

The leaves contain most of the plant's oxalic acid, which is a poison.

Mix 10 parts water to one part oxalic acid.

They can also be processed chemically as a source of oxalic acid.

This comment is correct if the bleaching has been done with oxalic acid.

Never eat the leaves of rhubarb, which contain oxalic acid.

Oxalic acid is not as strong, but it is less expensive and easier to use.

The 2,4,6-trichlorophenol ester of oxalic acid is a solid and thus easier to handle.

Certain chemicals, such as oxalic acid, attack copper but do not affect either silver or gold.