Obtaining accurate amounts of mercury from mercury compounds via electrolytic methods
US4678550A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1985 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | Dec 31, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C1/16
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for obtaining pre-determined, accurate rate amounts of mercury. In one embodiment, predetermined, precise amounts of Hg are separated from HgO and plated onto a cathode wire. The method for doing this involves dissolving a precise amount of HgO which corresponds to a pre-determined amount of Hg desired in an electrolyte solution comprised of glacial acetic acid and H.sub.2 O. The mercuric ions are then electrolytically reduced and plated onto a cathode producing the required pre-determined quantity of Hg. In another embodiment, pre-determined, precise amounts of Hg are obtained from Hg.sub.2 Cl.sub.2. The method for doing this involves dissolving a precise amount of Hg.sub.2 Cl.sub.2 in an electrolyte solution comprised of concentrated HCl and H.sub.2 O. The mercurous ions in solution are then electrolytically reduced and plated onto a cathode wire producing the required, pre-determined quantity of Hg.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.