Method of removing scale and acidic composition used thereof

Details Method of removing scale and acidic composition used thereof Method of removing scale and acidic composition used thereof

C - Chemistry, Metallurgy

23

F

C23F 11/14 (2006.01) C02F 5/00 (2006.01) C02F 5/10 (2006.01) C09K 8/528 (2006.01) C23F 11/10 (2006.01) C23F 14/02 (2006.01) C23G 1/06 (2006.01) C23G 1/10 (2006.01)

Patent

CA 2637314

The corrosion inhibiting activity of quaternary ammonium compounds is enhanced by the addition of a carbamide, specifically urea, in particular, the aryfquinoiinium halide corrosion inhibitor's activity with respect to a galvanized surface is significantly enhanced by the addition of the urea.

Selon la présente invention, l'activité d'inhibition de la corrosion de composés de type ammonium quaternaire est améliorée par l'addition d'un carbamide, plus spécifiquement d'une urée, en particulier, l'activité d'inhibition de la corrosion de l'halogénure d'arylquinoléinium en ce qui concerne une surface galvanisée est sensiblement améliorée par l'addition de l'urée.

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