How do you produce 1% sodium hypochlorite solution with an expiry period of 6 months for domestic disinfection of water from 10% sodium hypochlorite?
To produce 1% solution from a 10% concentrate, it takes 9 parts water (of drinking water quality) to one part concentrate. For domestic use, we do not recommend making a 6-month supply as it may lose strength over time. In addition, we recommend purchasing new concentrated sodium hypochlorite every several months and stored in a cool dark place to minimize its breakdown. Finally, a local agricultural extension agent may also be able to assist you.
For information on disinfecting private household wells, please visit our Web site at: http://water.epa.gov/drink/info/well/index.cfm.
For information on emergency disinfection of drinking water, please visit our Web site at: http://water.epa.gov/drink/emerprep/index.cfm.
- Bottled Water
- Consumer Concerns
- Consumer Confidence Reports (CCRs)
- Contaminants and Standards
- Facts, Figures, and Databases
- Filters/Home Water Treatment Units (HWTUs)
- Household Wells
- Lead and Copper
- Local Drinking Water Quality
- LT2/Stage 2 Rule
- Public Notification (PN)
- Source Water Protection/UIC Program
- Tap Water Testing
- Water Utility (PWS) Compliance/Issues
- Topic #: 23002-32241
- Date Created: 02/04/2011
- Last Modified Since: 05/20/2015
- Viewed: 12401