On-line iron (II) concentration monitoring to continuously determine corrosion in boiler systems
US5236845A · kind A · utility
26Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1992 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Oct 22, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N31/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining the presence of ferrous ion in boiler waters is described. The method can be used to directly measure the rate of corrosion occurring in boiler waters, and can measure the corrosion rates in the presence of boiler water treatment chemicals. The method uses a complex formed between only ferrous ion and a chemical 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine-p,p'-disulfonic acid monohydrate reagent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.