Abstract: The use of 2-benzthiazolylthiocarboxylic acid ammonium salts of the formula ##STR1## wherein n denotes a number from 1 to 6 and M denotes an organic ammonium ion as a corrosion-inhibiting agent in aqueous functional fluids, in particular in aqueous cooling lubricants.

Abstract: Novel quaternary alkoxyalkylammonium compounds of the formula 1 ##STR1## in which R denotes C.sub.8 -C.sub.20 --, preferably C.sub.12 -C.sub.18 --, alkyl or C.sub.8 -C.sub.20 --, preferably C.sub.12 -C.sub.18 --, alkenyl, R.sub.1, R'.sub.1 and R".sub.1, which can be identical or different, denote methyl, ethyl or benzyl and at least one of the radicals R.sub.1, R'.sub.1 and R".sub.1 denotes a group of the formula --(C.sub.S H.sub.2S O).sub.x H,R.sub.2 and R.sub.3, which can be identical or different, denote methyl, ethyl or benzyl,a denotes 0 or 1, b denotes 0 or 1, of which either a or b has to be=1, m denotes 0 or 1, n denotes 2 or 3, p denotes 1, 2 or 3, S denotes 2 or 3, x denotes 1, 2, 3 or 4, and A denotes a halide, methosulfate, ethosulfate or methophosphate ion. These compounds are used as retarders and leveling agents in the dyeing of polyacrylonitrile and acid-modified polyester fibers.

Abstract: The invention relates to novel compounds which are particularly suitable as corrosion inhibitors for aqueous liquids for the cleaning of metals, and especially as corrosion inhibitors for oil-free aqueous liquids used for the working of metals, in particular those exposed to corrosion. The compounds according to the invention correspond to the formula ##STR1## The invention also relates to a process for their preparation.

Abstract: The invention relates to novel compounds which are particularly suitable as corrosion inhibitors for aqueous liquids for the cleaning of metals, and especially as corrosion inhibitors for oil-free aqueous liquids used for the working of metals, in particular those exposed to corrosion. The compounds according to the invention correspond to the formula ##STR1## The invention also relates to a process for their preparation.

Abstract: Aqueous, alkaline, zinc-containing plating bath contains as complexing and equalizing agent a reaction product of phosphoric acid or polyphosphoric acid with a compound of the formula ##STR1## in which R represents methyl, ethyl, hydroxyethyl or hydrogen,n is 2, 3 or 4, preferably 2 or 3,m is in the range of from 1 to 5, preferably 1 to 3,x and y are 1 or 2, preferably 1 andz is 0 to 1,And optionally known brightening agents and/or wetting agents. It is used for the electrodeposition of zinc.