Tannic acid

Tannic Acid is a polyphenolic compound widely used in medicine, food industry, and laboratory applications primarily for its astringent and antioxidant properties.

🏭⚗️ Production
Tannic acid is typically extracted from plant sources such as gallnuts, tara pods, or sumac leaves by water or aqueous alcohol extraction. The crude extract is purified through filtration and concentration processes, then dried into a powder or liquid form and stored in airtight containers away from light and moisture.

🔬 Properties
Tannic acid appears as a yellow to light brown amorphous powder or granules with an astringent taste. It is soluble in water and alcohol, stable under normal conditions, and capable of forming complexes with proteins and metal ions.

🧪 Applications
Tannic acid is used as an astringent in pharmaceutical formulations, a clarifying agent in beverages, a mordant in dyeing and tanning leather, and as an antioxidant and preservative in food and cosmetics. It is also utilized in histology for staining purposes.

⚠️ Safety
Handle with care; tannic acid may cause skin and eye irritation. Use gloves and eye protection, and work in a well-ventilated area. Avoid ingestion in large quantities. Dispose of waste according to local chemical safety regulations.