| abstract |
The metal detergent composition comprises (A) at least one carboxylic acid compound selected from the group consisting of aliphatic monocarboxylic acids, polycarboxylic acids and neutralized salts thereof, and (B) a specific oxyalkylene group-containing compound. And (C) a specific organic phosphonic acid and a salt thereof, and at least one compound selected from the group consisting of a specific nitrogen-containing heterocycle-containing compound. |