Appendix B
Page 9
disinfectant of the free chlorine compounds. Free chlorine is in equilibrium with available
chlorine that remains in compound, providing greater biocidal capacity. NaDSS is more
stable and provides more free, active chlorine than other available chlorine products for
water disinfection.
Aquatabs
Available from
http://www.firstwater.info/noflash/pdct_prsnel_chem.html
Similar product may be available under the brand Aquaclear, Puritabs, and
Kintab (Bioman Products)
Formulation/Instructions
Each tablet contains sodium dichloroisocyanurate (NaDCC) in paper/foil laminate. When
dissolved in one liter of water, each effervescent tablet releases 10 mg of free chlorine,
with 50% of the available chlorine remaining in compound and released as free chlorine
is used up by halogen demand. Tablets are available in multiple strengths and can be
broken to treat smaller quantities of water. Larger quantities are available in tubs.
Aquatab also makes slow dissolving tablets for larger quantities of water that contain
trichloroisocynauric acid (TCCA), which acts similarly to NaDCC.
Surface water disinfection of clear water is accomplished at 10 mg/l in 10
minutes, 1 mg/l for tap water and 2-5 mg/l for well water. NaDCC Can also be used to
wash fruits and vegetables in concentrations of 20 mg/l.
The tablets have a 3 year shelf life; cost depends on size and quantity of tablets.
