RIANOX 168
Product Features
The most widely used organo-phosphite secondary antioxidant, offering excellent hydrolytic stability and low volatility. Effectively decomposes hydroperoxides formed during high-temperature processing of polymeric materials, preventing discoloration and degradation. Delivers outstanding synergistic performance when combined with hindered phenolic primary antioxidants such as RIANOX® 1010 and RIANOX® 1076.
Basic Information
| CAS No. | 31570-04-4 |
| Chemical Name | Tris(2,4-di-tert-butylphenyl) phosphite |
| Antioxidant Type | Secondary Antioxidant — Phosphite Ester |
Product Properties
| Molecular Weight | 647 |
| Melting Point (°C) | 181–185 |
| Appearance | White Crystalline Powder |
| Density @20°C (g/cm³) | 1.03 |
| Standard Packaging | 20 kg Bag |
Solubility (@20°C, g/100g solvent)
| Solvent | Solubility |
|---|---|
| Toluene | 30 |
| n-Hexane | 11 |
| Cyclohexane | 10 |
| Ethyl Acetate | 4 |
| Acetone | 1 |
| Ethanol | 0.1 |
| Methanol | <0.01 |
| Water | <0.01 |
Recommended Substrates
Polyolefin (PP / PE)
ABS
Polycarbonate (PC)
Polyester (PET / PBT)
Polyamide (PA)
PVC
PS / Engineering Plastics
Rubber & Elastomer
Petroleum Products
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Automotive & Transportation
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