Rust, corrosion, and scale remover
US5468303A · kind A · utility
25Cited by
34References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1994 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Feb 25, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G1/088
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A rust, corrosion, and scale removing composition is provided. It comprises an additive concentrate and water. The additive concentrate preferably consists of, on a parts by weight basis, 1.5 to 5 parts glycolic acid, 0.2 to 1 parts tetrasodium salt of ethylenediaminetetraacetic acid, 2 to 6 parts citric acid, and 1 to 3 parts trisodium citrate dihydrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.