Abstract: The invention relates to a composition for use as a metal working fluid, which comprises A) An additive mixture that essentially consists of a N-Acylsarcosine and a naphthenic acid or a salt thereof, polyalkylene or propylene glycol and further additives; and B) A functional fluid. The composition is useful in a process for protection against corrosion or oxidative degradation of zinc, aluminum or alloys thereof, or zinc-coated steels, wherein zinc, aluminum or alloys thereof are exposed to the composition.

Abstract: Disclosed is an antifreeze composition comprising a) a water soluble liquid alcohol freezing point depressant, b) a triazine based compound of formula I, c) a mixture of tolutriazole compounds of formulae II and III, d) 2-ethylhexanoic acid or alkali metal salts thereof, e) heptanoic acid or alkali metal salts thereof and f) water, where the compounds of formula I are where Z is a C1-C11 alkylene group, X is hydrogen or an alkali metal, R1 and R2, independently are hydrogen or methyl, R3 is a group —NR4R5 where R4 is C1-C12 alkyl or -Z-COOX and R5 is hydrogen or C1-C12 alkyl; and where the compounds of formulae II and III are

Abstract: Disclosed is an antifreeze composition comprising a) a water soluble liquid alcohol freezing point depressant, b) a triazine based compound of formula I, c) a mixture of tolutriazole compounds of formulae II and III, d) 2-ethylhexanoic acid or alkali metal salts thereof, e) heptanoic acid or alkali metal salts thereof and f) water, where the compounds of formula I are where Z is a C1-C11 alkylene group, X is hydrogen or an alkali metal, R1 and R2, independently are hydrogen or methyl, R3 is a group —NR4R5 where R4 is C1-C12 alkyl or -Z-COOX and R5 is hydrogen or C1-C12 alkyl; and where the compounds of formulae II and III are