weak acid

A weak acid is a substance that partially dissociates into ions when dissolved in water, meaning it doesn’t release all of its hydrogen ions. This characteristic results in a relatively low level of acidity compared to strong acids, which fully dissociate. Common examples of weak acids include acetic acid (found in vinegar) and citric acid (found in citrus fruits). Because they do not completely break apart in solution, weak acids are often less corrosive and milder in taste than strong acids, making them common in food and various biological processes.