Disclosed is a method for removing dissolved oxygen from a liquid (e.g., aqueous) system which comprises adding to said liquid system an effective amount of an oxygen-scavenging chemical selected from 1,2-dihydro-1,2,4,5-tetrazines of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually selected from lower alkyl groups having 1 to 4 carbon atoms and phenyl.
本发明公开了一种从液体(例如
水性)系统中除去溶解氧的方法,其包括向所述液体系统中添加有效量的氧化还原
化学物质,所述氧化还原
化学物质选自式为##STR1##的1,2-二氢-1,2,4,5-
四唑,其中R.sub.1和R.sub.2分别选自具有1至4个碳原子的低碳基团和苯基。