"sodium hydrochlorite - I don't know what this is - I have it not found" A much better known synonym for sodium hydrochlorite is sodium hypochlorite - the active principle of many bleaches. J. John T Lonsdale PhD 407 Edgewood Drive, Exton, Pennsylvania 19341, USA Home: 610 594 9232 Cell: 484 678 9856 Fax: 801 327 1266 Visit "Edgewood" - The Lonsdale Garden at http://www.edgewoodgardens.net/ USDA Zone 6b