Akshat Rasayan

Tannic acid is a naturally occurring polyphenol known for its remarkable anti-corrosion properties and wide industrial applications. At Akshat Rasayan , we manufacture high-quality tannic acid that plays a crucial role in protecting metal surfaces—especially steel—from corrosion and rust. Let’s explore how this eco-friendly compound works and why it’s widely used in steel preservation and rust prevention. Anti-Corrosion Properties of Tannic Acid The anti-corrosion properties of tannic acid are derived from its ability to form a protective, insoluble complex with iron ions. When applied to rusted metal, tannic acid reacts with iron oxide (Fe₂O₃) to create a stable, blue-black ferric tannate layer. This layer acts as a barrier, preventing moisture and oxygen from reaching the metal surface—effectively stopping further corrosion. In addition to forming a protective film, tannic acid also chelates metal ions, slowing down the electrochemical reactions responsible for rust formation. This...