Successful tanning depends on precise control of pH levels in the process. For that, you need Butan 7840LR, an alkaline basification agent that promotes optimal bonding to carboxyl groups by gradually and predictably raising the pH level in the bath. The result is superior neutralization and chrome fixation, batch after batch. With Butan 7840LR you’ll reduce the risks often associated with basification and bring to market more uniform leathers. And that can bring you greater profitability. D232.