Aqueous Coolant for engine test phase containing ammonium salts of monoamidas PHTHALIC ACID

摘要

The use of ammonium salts of monoamidas PHTHALIC ACID of the formula (1), in which R1 and R2 may be the same or different and are Hydrogen or an alkyl radical c1-20 Acyclic or cyclic, linear or branched and + is an Ammonium cation, such as inhibiting the Corrosion of space The aqueous vapor Refrigerant for internal combustion EnginesIn particular, during the test phase, after which the Coolant is Drained from the cooling Circuit of the motor. Aqueous Coolant and radiator ANTIFREEZE Concentrate comprising Said monoamidas ammonium salts of PHTHALIC ACID.