Method to improve yields of sodium hypophosphite
US4521391A · kind A · utility
1Cited by
5References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1984 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Jan 13, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B25/165
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process of producing sodium hypophosphite (NaH.sub.2 PO.sub.2) is disclosed wherein the yield of the product is increased. The process comprising reacting phosphorus, sodium hydroxide, calcium hydroxide and water wherein the H.sub.2 O/P.sub.4 ratio is increased from about 35 to from about 38 to about 60.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.