Antioxidant 168 Supplier in Malaysia
- Also known as
- AO 168
- Tris(2,4-Di-Tert-Butylphenyl) Phosphite
- TBPP
Antioxidant 168 is a phosphite processing stabiliser supplied for polymer and industrial formulation use in Malaysia. Also known as AO 168, TBPP and tris(2,4-di-tert-butylphenyl) phosphite, the 168 designation is an industry-wide product identity rather than a supplier trade name.
Common forms are white free-flowing powder and low-dust granule or pellet. Buyers should state the preferred form and required identity, assay and physical specification rather than assuming one universal grade.
Antioxidant 168 functions as a secondary antioxidant during polymer processing and is often formulated alongside a separate hindered-phenolic primary antioxidant. Applications include polypropylene, polyethylene, polystyrene, engineering plastics, adhesives, elastomers and polyurethane, while pre-blended stabiliser packages remain separate products.
Send the required form, specification, quantity, polymer system and delivery location for a quotation. Availability, packing, documentation, delivery timing and the quotation validity period are confirmed against the submitted requirement.

- Grade
- Powder grade, Low-dust granular grade
- Appearance
- White powder, granule or pellet according to grade
Antioxidant 168 grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Powder grade | White free-flowing powder | Identity, assay and physical specification confirmed with the quotation | Processing stabiliser for polymer compounding and additive masterbatches | Confirmed with the quotation |
| Low-dust granular grade | White granule or pellet | Identity, assay and granule specification confirmed with the quotation | Polymer processing where a lower-dust physical form is preferred for handling | Confirmed with the quotation |
How to buy antioxidant 168 from ChemTrade
Request a quote for antioxidant 168
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Chemical identity | Tris(2,4-di-tert-butylphenyl) phosphite | — |
| Additive class | Secondary phosphite antioxidant and processing stabiliser | — |
| Commercial forms | Free-flowing powder or low-dust granule or pellet | — |
Antioxidant 168 applications
Common questions about antioxidant 168
What is antioxidant 168?
Antioxidant 168 is tris(2,4-di-tert-butylphenyl) phosphite, a secondary phosphite antioxidant used mainly as a polymer processing stabiliser. AO 168 is a common abbreviation for the same additive.
Is antioxidant 168 a primary antioxidant?
It is generally specified as a secondary processing antioxidant rather than a replacement for a primary hindered-phenolic antioxidant. A formulator may use both functions in the same stabilisation package.
Are antioxidant 168 blends the same product?
No. Pre-blends containing antioxidant 168 and a separate primary antioxidant are related formulated products, not the same single additive, and should be specified independently.
What forms of antioxidant 168 are available for enquiry?
The common forms are free-flowing powder and low-dust granule or pellet. State the preferred physical form and the required additive specification with the enquiry.
Is antioxidant 168 the same as triphenyl phosphite?
No. Both are phosphites, but they are different chemical identities and should not share aliases or be treated as direct substitutes without formulation assessment.
What information is needed for a quotation?
Provide the form, specification, quantity, polymer or formulation system and delivery location. Packing, documentation, availability and delivery timing are confirmed with the quotation.
