There are indications of corrosion to the rod. The liquid is white/clear although the color of the liquid will not make a difference. Caluanie is used for crushing and processing cherished metals and semiprecious stones. It is used for processing valuable and semiprecious stones, crushing metals during the mining industries. https://caluaniemuelearoxidizeman41615.ampedpages.com/details-fiction-and-muelear-oxidize-5l-for-sale-61875414