FIELD: chemistry.
SUBSTANCE: method is carried out by adding an inhibitor to water, which is used as 0.1/1000000 to 25/1000000 parts by weight of N-R-iminobis (methylphosphonic acid) containing one, two or three hydroxyl (OH) groups in the radical R separated from the nitrogen atom with three, six, and eight simple bonds. The preparation of N-R-iminobis (methylphosphonic acid) containing, at least, one hydroxyl group in the radical is carried out by method of reacting an amino alcohol, in addition to monoethanolamine, with phosphorous acid and formaldehyde in a hydrochloric acid medium.
EFFECT: reducing the amount of the inhibitor produced in a technologically simple way necessary to effectively prevent formation of salt deposits in the heat and water supply systems, in the water treatment and storage systems, in the water preparation systems.
2 cl, 5 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| 1,4-BIS[3-OXY-2-HYDROXYAMINOBIS(DHOSPHONOMETHYL)PROPYL]BENZOL AS INHIBITOR OF SCALING AND METAL CORROSION | 0 |
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