TANNIC ACID POWDER
Tannic Acid Powder is a high-quality vegetable-based tannin widely used in leather processing and various industrial applications. It is a hydrolysable tannin compound known for its strong astringent properties and excellent solubility in water. Due to its high tannin content, tannic acid powder plays a significant role in leather tanning by binding with collagen proteins in hides and skins, helping produce durable, flexible, and well-finished leather products.
In leather processing, tannic acid improves the penetration and fixation of tannins, resulting in uniform color, better firmness, and enhanced structural strength of the leather. It is commonly used in tanning formulations, retanning processes, and leather dyeing to achieve consistent quality and improved finish. Apart from leather manufacturing, tannic acid powder is also used in water treatment, metal surface treatment, oil drilling chemicals, and as a rust-converting agent in industrial coatings.
The product is typically available as a brownish powder with good stability and excellent reactivity with proteins and metal ions. Its versatile properties make it suitable for a wide range of industrial applications, while maintaining high efficiency in tannery operations and chemical processing.
specification (by filter method)
| Appearance | : | Brownish Colour Powder |
| Solubility | : | Freely Soluble in Water |
| Odour | : | Typical Tannic Acid |
| Purity Dry Material | : | Min. 79% |
| Loss on Drying | : | 4.5% W/W |
| Ash Content | : | Max. 0.1 W/W |
| pH (1% in water) | : | 3-4 |
| Staining Test | : | Pass |
application
Dyeing and Textile Industry: In textile processing, tannic acid powder enhances dye fixation on natural fibers such as cotton, wool, and silk. It improves color depth, uniformity, and resistance to fading or bleeding. Its natural origin supports sustainable dyeing processes and reduces the need for synthetic fixing agents.
Industrial Water Treatment: Tannic acid powder plays a crucial role in industrial water systems as an effective corrosion and scale inhibitor. It forms strong bonds with metal ions, minimizing oxidation and safeguarding pipes from corrosion and scale buildup. By incorporating these natural compounds, water quality can be improved while reducing reliance on harsh chemicals, making water treatment both safer and more environmentally friendly.
Construction & Cement Industry: Tannic acid is an effective additive for cement and concrete, enhancing setting, strength, and durability while controlling hydration in heat-cured concrete. Even at concentrations of less than 0.1%, it can boost concrete strength, showing up to 44.1% improvement in flexural strength and over 11% in compressive strength. Tannic acid also increases density by reducing tiny pores, enhancing durability, and making it suitable for standard and special cement mixes.
*Tanmix manufactures and markets the TANNIC ACID POWDER worldwide in a brown powder form.