Systems inhibited against corrosion and/or scale deposition
US4689200A · kind A · utility
27Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1986 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Mar 11, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Aqueous or partly aqueous systems are treated against the corrosion of metals, especially ferrous metals, in contact therewith, and/or against scale deposition therefrom, by adding to these systems from 0.1 to 50 000 ppm of 2-hydroxyphosphonoacetic acid having the formula I ##STR1## or a water-soluble salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.