Products
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 |
*Tanmix manufactures and markets the TANNIC ACID POWDER worldwide in a brown powder form.