Title:
二価鉄イオン含有水溶液
Document Type and Number:
Japanese Patent JP5591256
Kind Code:
B2
Abstract:
An aqueous solution containing divalent iron ions having improved storage stability such that the oxidation over time of divalent iron ions in the aqueous solution containing divalent iron ions to trivalent iron ions is suppressed and the occurrence of the precipitation of iron (III) hydroxide is prevented for long periods. The aqueous solution contains divalent iron ions having improved storage stability characterized in that it contains divalent iron ions and a hydroxylamine salt as a reducing agent and has a pH of 3.0 or lower. The pH is preferably 2.2 or lower and more preferably 1.2 or lower.
Inventors:
Masaomi Murakami
Sekiguchi 淳之輔
Sekiguchi 淳之輔
Application Number:
JP2011541860A
Publication Date:
September 17, 2014
Filing Date:
October 25, 2010
Export Citation:
Assignee:
JX day ore Nippon Oil metal incorporated company
International Classes:
C01G49/00; C25D21/14
Domestic Patent References:
| JP2005256045A | 2005-09-22 | |||
| JPS6241718A | 1987-02-23 | |||
| JPS6324091A | 1988-02-01 | |||
| JPS58156539A | 1983-09-17 | |||
| JP2005256045A | 2005-09-22 | |||
| JPS6241718A | 1987-02-23 | |||
| JPS6324091A | 1988-02-01 | |||
| JPS58156539A | 1983-09-17 |
Attorney, Agent or Firm:
Masami Sakai
Norio Kagami
Norio Kagami