Title:
METHOD FOR STORING SODIUM HYPOCHLORITE
Document Type and Number:
WIPO Patent Application WO/2013/140962
Kind Code:
A1
Abstract:
This method for storing a sodium hypochlorite solution comprises adding a phosphate or phosphonate to a sodium hypochlorite solution. One or more species selected from orthophosphoric acid, tripolyphosphoric acid, polymetaphosphoric acid, phosphorous acid, and sodium salts thereof can be used as the phosphate or phosphonate. Preferably, the available chlorine concentration of the sodium hypochlorite solution is 1-30 wt%; also preferably, the amount of phosphate or phosphonate added is 0.1-5 wt% (in terms of phosphoric acid or phosphonic acid) in relation to the sodium hypochlorite solution. According to the method for storing a sodium hypochlorite solution of such description, sodium hypochlorite can be stably stored for a long time by a simple and inexpensive method.
Inventors:
HIRANO AKIHIDE (JP)
FUKUZAWA KOTARO (JP)
HAYASHI KAZUKI (JP)
FUKASE TETSURO (JP)
FUKUZAWA KOTARO (JP)
HAYASHI KAZUKI (JP)
FUKASE TETSURO (JP)
Application Number:
PCT/JP2013/055071
Publication Date:
September 26, 2013
Filing Date:
February 27, 2013
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C01B11/06; A01N25/22; A01N59/08; A01P3/00
Domestic Patent References:
| WO2003096810A1 | 2003-11-27 |
Foreign References:
| JPH0931494A | 1997-02-04 | |||
| JP2001333977A | 2001-12-04 |
Attorney, Agent or Firm:
HAYAKAWA, Yuzi et al. (JP)
Yuji Hayakawa (JP)
Yuji Hayakawa (JP)
Download PDF:
Previous Patent: LIGHT SOURCE DEVICE AND ENDOSCOPIC SYSTEM
Next Patent: HOLLOW CYLINDRICAL CAPACITOR AND INVERTER DEVICE
Next Patent: HOLLOW CYLINDRICAL CAPACITOR AND INVERTER DEVICE