Citric acid is a natural, weak organic acid found primarily in citrus fruits like lemons, limes, and oranges. It is a white, crystalline powder with a tangy taste, widely used as a preservative, flavoring agent, and pH stabilizer in food and beverages. Citric acid is also utilized in cleaning products due to its ability to remove stains, lime scale, and rust. In the pharmaceutical and cosmetic industries, it serves as an ingredient in various products, enhancing stability and effectiveness. Beyond its natural sources, citric acid is often produced through the fermentation of sugars. Its versatility, safety, and effectiveness make it an essential compound in many household, industrial, and food applications.