| 摘要 |
<p>Minute quantities of water in a terpene cleaning solvent cause a reaction with certain metals, particularly lead, tin and copper, which reactions are responsible for corrosion of the metal. Such reactions can be reduced or substantially eliminated by exposing the cleaning solvent to a molecular sieve prior to the cleaning operation. The molecular sieve typically comprises a plurality of beads of zeolite to which the cleaning solvent is exposed. The molecular sieve traps the water molecules from the solvent so that, after treatment, the solvent contains substantially no water molecules.</p> |
