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Should be easy enough question . EDTA %1 aprox ph of 10 but this is point when most carbomers fall out to liquid . Need to drop to 6-6.5 s to keep thick .
used potassium sorbate but I understand its not effective over phof 6.5? (I assume thats why sample darkened at ph7 which I lowered using ascorbic acid ( only thing laying around the other day )
So main question , would citric acid be more effective ( require less product) ? ( will be trying anyway just wanted some input regarding carbomer and ETA)