Question
Posted on: March 6 2013Several dentists ask for a stabilised solution of 3% sodium hypochlorite to prepare.
how to stabilize (without obstructing the release of active chlorine)?
Is The buffing here a sufficient solution (PH 8.5 or 11?)?
What about the correct chlorine degrees?
Answer
hypochlorite solution 12.5% chlorine qs
after carbonate qs
after bicarbonate qs
water up to 100g
for long Storage, the pH is set to approximately 11 for immediate use and for a powerful disinfectant effect pH = 9. If necessary, the pH should be adjusted when commissioning. In The first case one animates after carbonate; In the second bicarbonate to adjust the pH.
for both, the storage is preferably carried out in the refrigerator; especially outside light influence and in a polyethylene bottle. When stored at 20 ° C or in the refrigerator one speaks of a retention period of 3 months.
with regard to chlorometric degrees, we are mainly the French in which: 1 French degree corresponds to a concentration of 3.17 g chlorine per litre or 0.31% g/g. Javel Water possesses 12 or 8 French degrees. I believe that the latter is available at the wholesale trade. Eight degrees will then correspond to 2.45% (g/g) of active chlorine.