Letter 35092

STABILITY OF H2O2 IN QAC's [South Africa] 

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I wish to stabilize H2O2 in Quaternary Ammonium Compounds (QAC's), which are mildly basic,and are chlorides( alkyl dimethyl benzyl ammonium chlorides).
QAC's are also stable in mildly acidic conditions also.
I added sodium gluconate (chelate), Nonyl Phenol NP9 (surfactant) as adjuvants to help stabilize the H2O2, but noticed small bubbles that keep on rising from within the solution and wall of the plastic container made of PET.This indicates decomposition of H2O2.
Water used is de-ionised, all chemicals are of high quality, bottle is new and rinsed.
Such proprietary preparations do exist in the market.
Which stabilizer is best suited for this application ?
Thanks in advance.

June Marjorie
researcher - Durban, South Africa

As you said yourself, the most successful ones are proprietary. That indicates that the researchers who were successful in their quest now want to recoup their investment. Hopefully, though, a reader will refer you to published literature on the subject. Good luck.

Ted Mooney, P.E.  finishing.com Brick, New Jersey

Hi,
I am interested in your question because I manufacture sanitizers and use the BAC and NP9 so if you are interested we can exchange the information that we both have.

Shelly Ann O'Neil
- Trinidad and Tobago

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