Title:
DISILVER HYDROGEN CITRATE-CONTAINING COMPOSITION, METHOD FOR PRODUCING SAME, ANTIBACTERIAL AGENT OR ANTIVIRAL AGENT USING SAME, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/261467
Kind Code:
A1
Abstract:
Provided are: a powder of a pure disilver hydrogen citrate-containing composition in powder form having excellent solubility; and a method for obtaining said disilver hydrogen citrate-containing composition easily and highly efficiently. Also provided are: an antibacterial agent or an antiviral agent containing said disilver hydrogen citrate-containing composition; and a method for producing the same. A method for producing a disilver hydrogen citrate-containing composition according to the present invention comprises the following steps (1) to (3): (1) a step for adjusting a reaction solution which contains a silver compound and a citric acid and has a pH of 2.0-5.5; (2) a step for precipitating a disilver hydrogen citrate-containing composition from the reaction solution; and (3) a step for recovering a precipitated disilver hydrogen citrate-containing composition.
Inventors:
SASAKI TOMIHISA (JP)
SASAKI TAKAMASA (JP)
SASAKI YOSHINORI (JP)
SASAKI TAKAMASA (JP)
SASAKI YOSHINORI (JP)
Application Number:
PCT/JP2021/023513
Publication Date:
December 30, 2021
Filing Date:
June 22, 2021
Export Citation:
Assignee:
SASAKI CHEMICAL IND CO LTD (JP)
International Classes:
C07C51/41; A01N37/36; A01N55/02; A01P1/00; A01P3/00; A61K33/38; A61P31/04; A61P31/12; C07C59/265; C07F1/10
Domestic Patent References:
| WO2020162485A1 | 2020-08-13 |
Foreign References:
| JP2007504157A | 2007-03-01 | |||
| JP2011530542A | 2011-12-22 | |||
| JP2007504157A | 2007-03-01 | |||
| JP2011530542A | 2011-12-22 | |||
| JP2013053085A | 2013-03-21 |
Other References:
ZARKADAS, G. M. ET AL.: "Influence of citric acid on the silver electrodeposition from aqueous AgN03 solutions", ELECTROCHIMICA ACTA, vol. 50, 2005, pages 5022 - 5031, XP005051387, DOI: 10.1016/j.electacta.2005.02.081
Attorney, Agent or Firm:
SAEKI, Takuro et al. (JP)
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