It appears as colorless, odorless, translucent crystalline powder or granules with a distinctly sour taste. Unlike anhydrous citric acid, it contains one molecule of water of crystallization, which is lost when heated to approximately 74 °C. Widely recognized as a safe, eco-friendly organic acid, it is extensively used in food, beverage, pharmaceutical, and industrial sectors.

Ключевые приложения

Food & Beverage Industry: The most common application is as an acidity regulator (E330), flavor enhancer, and preservative. It is added to carbonated drinks, fruit juices, jams, candies, dairy products, and canned foods to adjust sourness, extend shelf life, and enhance flavor profiles. It also functions as a chelating agent to prevent oxidation and maintain product color.

Pharmaceutical Industry: Used as a pH adjuster in drug formulations (tablets, syrups, injections) to improve stability and bioavailability. It is also an ingredient in effervescent tablets, where it reacts with sodium bicarbonate to produce carbon dioxide.

Cosmetics & Personal Care: Added to skincare products (toners, serums), hair care products, and detergents as a pH regulator, chelating agent, and preservative. It helps stabilize formulations, enhance cleaning efficacy, and reduce irritation.

Industrial Applications: Serves as a chelating agent in water treatment to prevent scale formation by binding calcium and magnesium ions. It is also used in metal cleaning (removes rust and oxide layers), textile dyeing (as a mordant to improve dye fixation), and as a building block in the synthesis of biodegradable polymers.