| abstract |
Disclosed is an acidic liquid composition containing an acidic oxidant, which has excellent corrosion suppressing effects (antirust effect and discoloration-suppressing effect) on aluminum-based metals. The acidic liquid composition can be effectively used for disinfection or sterilization of an object including a portion made of an aluminum-based metal, without affecting the appearance or functions of the object. Specifically, the acidic liquid composition contains (a) an acidic oxidant, (b) nitric acid or a salt thereof, and (c) at least one carboxylic acid selected from the group consisting of monocarboxylic acids, dicarboxylic acids and tricarboxylic acids, or a salt thereof. |