J.IIC-CG VOLUME 6 (1981)
The Removal of Rust Stains from Arctic Tin Can Labels Using Sodium Hydrosulfite
A series of paper labels on tin cans from various Arctic sites was treated with sodium hydrosulfite in order to remove encrusted iron stains. The treatment was based upon experiments which evaluated the effectiveness of several different procedures for removing iron stains from paper. Sodium hydrosulfite was chosen as the most effective. Its effects on unstained paper and on the metals present in the cans were evaluated, using oxalic acid as a standard for comparison.
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