Triisobutyl Phosphate (TIBP)

Triisobutyl Phosphate (TIBP) is a colorless, odorless, high-purity organophosphorus compound widely used as a high-performance plasticizer, flame retardant, antifoaming agent, and extraction solvent. Thanks to its excellent compatibility with PVC, acrylics, cellulose derivatives, and various synthetic resins, TIBP provides superior flexibility, low-temperature performance, and flame retardancy while maintaining good hydrolysis stability and low volatility.

Technical Specification

Packaging and Storage

• Net weight 200kg/iron drum or 1000kg/IBC.

• Handle with care, no vigorous strike is permitted.Deposited in shady, airy and dry warehouse. Keep away from fire and rain.

Applications of Triisobutyl Phosphate (TIBP)

Flame-Retardant Plasticizer:

Widely used in vinyl resins, cellulose nitrate, synthetic rubber, and PVC as a primary or secondary plasticizer with excellent fire resistance.

Defoamer/Antifoaming Agent:

 Highly effective in coatings, inks, adhesives, and industrial cleaning systems, especially in high-temperature or high-shear environments.

Extraction Solvent & Metal Extractant:

Used in hydrometallurgy for the separation and purification of rare earths, cobalt, nickel, and uranium.

Concrete Additive:

Acts as an air-entraining and water-reducing agent, improving frost resistance and workability of concrete.

Textile & Leather Auxiliary:

Improves softness and flame retardancy in textile and leather treatments.

Advantages of Triisobutyl Phosphate (TIBP)

• Lower viscosity and faster evaporation rate

• Better low-temperature flexibility

• Superior compatibility with acrylics and polyurethane systems

• Reduced odor and volatility

Frequently Asked Questions (FAQs)

Q: What is the main difference between TIBP and TBP (Tributyl Phosphate)?

A: TIBP contains branched isobutyl groups instead of straight n-butyl chains. This gives TIBP significantly lower volatility, better low-temperature flexibility, improved hydrolysis resistance, and superior plasticizing efficiency compared to TBP.

Q: Is Triisobutyl Phosphate flammable?

A: TIBP has a high flash point (≥150°C) and is classified as combustible but not readily flammable.  It is widely used as a flame retardant.

Q: Does TIBP contain phthalates?

A: No. Triisobutyl phosphate is a phosphate ester and is completely phthalate-free, making it a safer alternative in sensitive applications.

Q: Is TIBP biodegradable?

A: TIBP exhibits moderate biodegradability and low bioaccumulation potential. It is considered environmentally preferable to many chlorinated flame retardants.

Q: Does TIBP have flame-retardant properties on its own?

A: Yes. TIBP is an effective phosphorus-based flame retardant and is commonly used alone or with antimony trioxide or other synergists in PVC and polyurethane systems.

Q: Is TIBP a direct drop-in replacement for phthalate plasticizers?

A: Yes. TIBP is widely used as a non-phthalate alternative to DOP/DEHP in flexible PVC applications, especially where low volatility and flame retardancy are required.

Where can I buy high-quality Triisobutyl Phosphate (TIBP)?

You can contact us via Email mandy@aozunchem.com or WhatsApp +86-18452425579 for offers and bulk orders.

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