PROCESS FOR INHIBITING THE CORROSION AND DEPOSITION OF BOILER SCALE IN WATER-CONVEYING SYSTEMS

摘要

Corrosion and deposition of boiler scale in waterconveying systems are inhibited. To this end the water is admixed with at least one carboxy-alkane compound of phosphorus of the general formula: in which each of the substituents R1, R2, R3, and R4 stands for hydrogen or an alkyl group having from 1 to 4 carbon atoms, R5 stands for hydrogen, an OH-group or an alkyl group having from 1 to 3 carbon atoms, and n stands for 0 or 1, or with at least one water-soluble salt thereof.