Liquid composition suitable for use as a corrosion inhabitor and a method for its preparation

Abstract

A process relating to a preparing a clear aqueous composition. The process includes mixing in a vessel a high-capacity aqueous carrier, water-soluble organic acid having reducing capacity, a metalloid compound which is antimony or germanium compound, unsaturated alcohol and morpholine or derivative thereof, such that the dissolution of said metalloid compound in the aqueous carrier is accomplished under acidic environment.

1 - 48 . (canceled) 
     
     
         49 . A process for preparing a clear aqueous composition, which comprises mixing in a vessel a high-capacity aqueous carrier, water-soluble organic acid having reducing capacity, a metalloid compound which is antimony or germanium compound, unsaturated alcohol and morpholine or derivative thereof, such that the dissolution of said metalloid compound in said aqueous carrier is accomplished under acidic environment. 
     
     
         50 . A process according to  claim 49 , which comprises mixing (iso)ascorbic acid in the aqueous carrier to form an acidic aqueous carrier, dissolving the metalloid compound in said carrier, introducing unsaturated alcohol into the resulting solution and subsequently adding morpholine or derivative thereof, to form an essentially homogeneous liquid composition with a pH in the range between 6 to 12. 
     
     
         51 . A process according to  claim 50 , wherein the metalloid compound is antimony halide, the unsaturated alcohol is selected from the group consisting of alkenols and alkynols having from 3 to 7 carbon atoms and the morpholine or derivative thereof is represented by Formula I 
       
         
           
           
               
               
           
         
       
       wherein R1 is hydrogen or C 1 -C 3  alkyl and R 2  is independently selected from the group consisting of hydrogen, C 1 -C 3  alkyl and phenyl group and n is 0, 1, 2, 3 or 4, said C 1 -C 3  alkyl and phenyl groups being optionally substituted 
     
     
         52 . A process according to  claim 51 , wherein the alkenol is straight chain primary alkenol containing from 3 to 5 carbon atoms and the morpholine of Formula I is selected from the group consisting of morpholine, 4-(2-hydroxyethyl) morpholine and mixtures thereof.