The purpose of this study was to examine the effect of time, light and air exposure on the pH stability and demineralization ability of a standardized pH 1 citric acid solution. A 0.5 liter pH 1 citric acid solution was prepared and examined over a 5 month period. The results indicated that pH 1 citric acid and solutions prepared under the described conditions remained stable during the examination period with regards to all tested variables.
No takes yet. Share an insight, caveat, or question.
Corley et al. (1982) studied this question.