Citric acid is naturally concentrated in a variety of fruits and vegetables and is particularly concentrated in lemons and limes. As with most organic acids, citric acid is a weak acid, with a pH level between 3 and 6.
Is citric acid weak?
Citric acid is a weak acid that is found naturally in all citrus fruits.
What is the strength of citric acid?
Citric acid is a moderately strong organic acid. When measured at 25°C and an ionic strength of 0.1, the pKa values are pK1 = 4.71 and pK2 = 3.24 .
Can citric acid hurt you?
Serious side effects of citric acid, potassium citrate, and sodium citrate include numbness or tingly feeling, swelling or rapid weight gain, muscle twitching or cramps, fast or slow heart rate, confusion, or mood changes, bloody or tarry stools, severe stomach pain, ongoing diarrhea, or seizure (convulsions).