Evaluation of Urea Sulfate as a Substitute for formic acid in the Retan, Color, and Fatliquor process

摘要

formic acid is a noxious and corrosive chemical that must be handled with extreme care by work- that must be handled with extreme care by work- ers in the leather tanning industry. A safe alterna- tive to formic acid in the Retan, color, and fatliquor process would be highly desired if the alternative was not only demonstrated to be an equally effi- cient but also a cost effective replacement.