Specification
| Product Name | Triisobutyl Phosphate |
|---|---|
| Other Names | TIBP |
| CAS No. | 126-71-6 |
| EINECS No. | 204-798-3 |
| MF | C12H27O4P |
| Molecular weight | 266.31 |
| Purity | 99% |
| Appearance | Colorless to pale yellow transparent liquid, with a faint ester-like odor |
| Density | 0.965g/mLat 20°C (lit.) |
| Melting point | 150 °C |
| boiling point | ~205°C (lit.) |
| flash (ing) point | 150°C |
Values are typical for the standard grade. Tighter specifications are available — state the target in your inquiry and we confirm against the production batch.
Packaging and shipping
The triisobutyl phosphate (TIBP) produced by our company is an excellent and versatile multi-functional organic phosphate. It plays a significant role in various high-tech fields such as wet metallurgy, polymer materials, and industrial additives.
Our TIBP products possess the following outstanding features, ensuring their reliable performance in harsh industrial environments:
1. Efficient Selective Extraction Capacity: The phosphorus-oxygen groups in its molecular structure have excellent complexation and selective extraction capabilities for various metal ions (especially rare earth, uranium, thorium, etc.), which is crucial for achieving metal separation and purification in complex systems.
2. Good Chemical and Thermal Stability: It remains chemically stable under normal conditions and is not prone to decomposition at high temperatures, making it suitable for various process conditions.
3. Multi-functionality: It also possesses multiple functions such as plasticizing, flame retardancy, defoaming, and lubrication, making it a highly efficient “one-product with multiple functions” fine chemical.
4. Low Volatility and Compatibility: As an auxiliary plasticizer, it can effectively improve the low-temperature performance of polymer materials and has low volatility.




Product Description
Anhui Eapearl Chemical Co., Ltd. is a comprehensive chemical enterprise integrating research and development, production and sales. Relying on advanced production technologies and strict quality management systems, our company is committed to providing global customers with high-performance fine chemical products. The triisobutyl phosphate (TIBP) produced by our company is an excellent and versatile multi-functional organic phosphate ester. It plays a significant role in multiple high-tech fields such as wet metallurgy, polymer materials, and industrial additives.
Our TIBP products possess the following outstanding features, ensuring their reliable performance in harsh industrial environments:
Highly efficient selective extraction capability: The phosphorus-oxygen groups in its molecular structure have excellent complexation and selective extraction capabilities for various metal ions (especially rare earth, uranium, thorium, etc.), which is crucial for achieving metal separation and purification in complex systems.
Good chemical and thermal stability: It remains chemically stable under normal conditions and is not prone to decomposition at high temperatures, making it suitable for various process conditions.
Multifunctionality: It also possesses multiple functions such as plasticizing, flame retardancy, defoaming, and lubrication, making it an efficient “one-in-all” type fine chemical.
Low volatility and compatibility: As an auxiliary plasticizer, it can effectively improve the low-temperature performance of polymer materials and has low volatility.
With its unique performance combination, TIBP has irreplaceable value in the following fields:
Hydrometallurgy and nuclear fuel processing (core high-end applications)
The most important value of TIBP lies in its efficient separation of rare metals and radioactive elements.
Nuclear fuel reprocessing: In the nuclear industry, TIBP is a commonly used extractant in key process flows such as the plutonium-uranium extraction and reduction method (PUREX). It can efficiently and selectively extract and separate radioactive metal ions such as uranium (U), thorium (Th), and plutonium (Pu) from nitric acid solutions in spent nuclear reactor fuel, achieving the recovery, purification, and recycling of nuclear fuel, with extremely high technical barriers and added value.
Separation of rare earths and rare metals: In the field of hydrometallurgy, TIBP is widely used for extracting, separating, and purifying rare earth elements, zirconium (Zr), hafnium (Hf), tantalum (Ta), niobium (Nb), and other strategic rare metals from complex ores or solutions. It has good selectivity and high extraction efficiency, and is one of the key technologies for ensuring the stable supply of raw materials for modern high-tech industries (such as permanent magnet materials, aerospace, semiconductors).
Polymer material additives
Auxiliary plasticizers: Can be used as auxiliary plasticizers in polyvinyl chloride (PVC), cellulose resins, synthetic rubber, etc. When used in combination with main plasticizers (such as phthalate esters), it can significantly improve the low-temperature flexibility, cold resistance, and flexibility of the products, and enhance the performance of the products in cold environments.
Flame retardants: TIBP contains phosphorus and belongs to phosphorus-based flame retardants. When the materials such as plastics, coatings, and unsaturated polyesters are heated, it can promote char formation and release phosphoric acid and other substances to cover the surface of the materials to isolate oxygen, and at the same time generate free radicals to inhibit the combustion chain reaction, thereby achieving the effect of flame retardancy. It is often used as a compounding component to enhance the flame retardancy of the materials.
Industrial process additives and special solvents
Defoamers and penetrants: Due to its ability to effectively reduce the surface tension of liquids, TIBP is widely used as defoamers and penetrants. It is applied in industries such as textile printing and dyeing, ink, building coatings, oilfield additives, papermaking, and water treatment, and can quickly eliminate or suppress the formation of foam in production processes, or enhance the penetration ability of liquids on the substrate, improving production efficiency and product quality.
Lubricating additives: In industrial oils such as lubricating oil, cutting fluid, and hydraulic oil, TIBP can be used as an additive to play an anti-wear and extreme pressure role, effectively improving lubrication performance and protecting mechanical equipment.
High boiling point special solvents: Due to its good solubility and high boiling point, it can be used as a special solvent in certain chemical reactions, special coatings, or precision electronic cleaning processes.


Delivery&Payment method

Frequently asked
In what packaging is Triisobutyl Phosphate shipped?
Standard formats are Bag (200 kg), IBC Bag (1000 kg), ISO tank (20ft) (24–26 m³), ISO tank (40ft) (48–50 m³). Other packaging can be arranged for full-container orders.
Is a safety data sheet available for Triisobutyl Phosphate?
Yes, on request. Safety data sheets are issued per grade and destination market; state the country of import in your inquiry.
What purity do you supply?
The standard grade is 99%. Tighter specifications are confirmed against the production batch before shipment.





