C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/34
C11D 7/00 (2006.01) C02F 5/14 (2006.01) C07F 9/38 (2006.01) C09K 15/00 (2006.01) C23F 11/167 (2006.01)
Patent
CA 1058474
ABSTRACT OF THE DISCLOSURE: Corrosion and deposition of boiler scale in water- conveying systems are inhibited. To this end the water is admixed with at least one carboxy-alkane compound of phosphorus of the general formula: Image 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.
244536
Auel Theodor
Heymer Gero
Ulrich Hannsjorg
Wasel-Nielen Horst-Dieter
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