Process of inhibiting corrosion with quaternaries of halogen derivatives of alkynoxymethyl amines

Claim 1

A process of inhibiting corrosion of metals and alloys in an aqueous system which comprises adding to such system a corrosion inhibiting amount of a quaternary selected from quaternaries of halo alkynoxymethyl amines having one to two quaternary nitrogen atoms to each of which are attached up to two halogen derivatives of alkynoxymethyl moieties of the formula XC.tbd.CR"OCH 2 --where R" is alkylidene and X is halogen, the groups directly attached to the quaternary nitrogen atoms in the said quaternary amines being said halo alkynoxymethyl groups and being R and R' groups when there is but one quaternary nitrogen atom present per molecule and being said halo alkynoxymethyl groups and being R and Z groups when there are two quaternary nitrogen atoms present per molecule, the Z groups constituting bridging groups linking the two quaternary nitrogen atoms, the R groups being monovalent hydrocarbon, hydroxy substituted alkyl or furfuryl groups, the R' groups being monovalent hydrocarbon of up to 30 carbon atoms and the Z groups being divalent alkylene, alkenylene, alkynylene, alkaralkylene, or alkylenether groups, the counter anions balancing the positive charge on the quaternary nitrogen being halide anions.