Abstract IN WHICH N MEANS AN INTEGER OF 1 TO 30 AND M STANDS FOR 0 OR 1 AND WHEREIN, IF N IS AT LEAST 3, IN THIS FORMULA II an amount of up to one third of the radicals which are enclosed by the bracket () can be replaced by radicals of the formula Corrosion inhibiting agents having the formula IN WHICH R1 stands for an alkyl radical having 4 to 18 carbon atoms and bound in the 6-, 4- or 2-position to the benzene nucleus, R2 stands for hydrogen, an alkyl radical having up to 9 carbon atoms, or a radical of the formula A stands for one of the anions Cl( ), Br( ), I( ), Ch3OSO3( ) and 1/2 SO4 ( )( ) in a quantity which is equivalent to the number of the positively charged sulfur atoms in the total molecule of the formula I, and X stands for a lower alkyl radical, the radical -C2H4OH or a radical of the formula
An acid metal treating bath consisting essentially of hydrochloric acid and as corrosion inhibitor 0.05 to 2.0 percent by weight of a compound of the formula
Claim 2
Dependent Claim
30 words
An acid metal treating bath consisting essentially of hydrochloric acid and as corrosion inhibitor 0.05 to 2.0 percent by weight of an equimolar mixture of the compounds of the formulae
Claim 3
Dependent Claim
26 words
An acid metal treating bath consisting essentially of hydrochloric acid and as corrosion inhibitor 0.05 to 2.0 percent by weight of a compound of the formula
Claim 4
Dependent Claim
29 words
An acid metal treating bath as claimed in claim 1, which additionally contains up to 15 percent by weight, referred to the sulfonium salt corrosion inhibitor, of an alkynol.
Claim 5
Dependent Claim
18 words
The acid metal treating bath as claimed in claim 1 wherein R2 represents a group of the formula
Claim 6
Dependent Claim
14 words
The acid metal treating bath as claimed in claim 6 wherein Y is -CH3.
Claim 7
Dependent Claim
28 words
An acid metal treating bath consisting essentially of hydro-chloric acid and as a corrosion inhibitor 0.05 to 2.0 percent by weight of a compound of the general formula