A TANNING COMPOSITION AND A PROCESS FOR TANNING PELTS OR SKINS USING THE SAME
摘要
<p>A tanning composition in solid form, comprises a ferrous (Fe<II>) salt, e.g. FeSO4.7H2O, and an aliphatic hydroxy-carboxylic acid or a salt thereof. The acid may be glycolic, lactic, tartaric, malic, citric or gluconic acids.</p>
