| 摘要 |
<p>New rinsing agent comprises an aq. soln. based on a glycol. Used for cleaning out the channels through which the reaction mixtures pass in e.g. mixing heads stirring meand, forwarding and valve means. The rinsing agent is less corrosive and less toxic than the chlorohydrocarbons normally used. Specifically the aq. soln. comprises diluted ethylene glycol, and pref. also contains some polyvalent alcohol.</p> |
