Corrosion inhibition of water systems with phosphonic acids
US4076501A · kind A · utility
7Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1976 |
| Grant date | Feb 28, 1978 |
| Priority date | — |
| Expiry date | Jan 28, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/1676
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Process for inhibiting corrosion by corrosive water systems on metals which comprises adding to the water systems a phosphonic acid having the general formula: ##STR1## wherein R.sup.1 is a straight chain alkyl group having 1-5 carbon atoms, an alkenyl group having 3-5 carbon atoms in which the double bond is not adjacent to the nitrogen atom, a tolyl group, a benzyl group or a cyclohexyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.