Composition for the control of corrosion on iron surfaces in water systems
US5093077A · kind A · utility
0Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1989 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Aug 2, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A composition and method for inhibiting corrosion on metallic surfaces which either have been immersed in and removed from an aqueous medium or are partially immersed in a static aqueous medium. The invention comprises adding to an aqueous medium a composition comprising ammonium lignosulfonate, NO.sub.2, B.sub.4 O.sub.7 and SiO.sub.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.