Corrosion inhibitors for absorption refrigeration systems
US4019992A · kind A · utility
18Cited by
5References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1975 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Nov 3, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Working fluid compositions for absorption refrigeration systems comprising alcohol, lithium bromide, zinc bromide and a synergistic mixture of arsenic trioxide and the sodium salt of ethylenediaminetetraacetic acid which are markedly inhibited in corrosion of ferrous metals, and a method for inhibiting the corrosion of ferrous metals by alcohol-lithium bromide-zinc bromide mixture by adding a synergistic combination of arsenic trioxide and ethylenediaminetetraacetic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.