RIANOX DSTP
Product Features
A sulfur-containing thioester secondary antioxidant that decomposes and neutralizes hydroperoxides formed by auto-oxidation of polymers during processing and long-term use. Provides excellent long-term thermal stability and heat aging resistance. Widely used as a synergist in combination with hindered phenolic primary antioxidants (such as RIANOX® 1010 and RIANOX® 1076) to significantly enhance overall antioxidant performance.
Basic Information
| CAS No. | 693-36-7 |
| Chemical Name | Distearyl thiodipropionate (Dioctadecyl 3,3′-thiodipropanoate) |
| Antioxidant Type | Secondary Antioxidant — Thioester |
Product Properties
| Molecular Weight | 683 |
| Melting Point (°C) | 63–69 |
| Appearance | White Grain / Powder |
| Recommended Dosage | 0.05–1.0% |
| Standard Packaging | 20 kg Bag |
Solubility (@20°C, g/100g solvent)
| Solvent | Solubility |
|---|---|
| Chloroform | 20 |
| Methylene Chloride | 13 |
| Toluene | 10 |
| Ethanol | 2 |
| Ethyl Acetate | 2 |
| n-Hexane | 2 |
| Acetone | 1 |
| Methanol | 1 |
| Water | <0.01 |
Recommended Substrates
Polyolefin (PP / PE)
ABS
Polyester (PET / PBT)
Polyamide (PA)
PS / Styrenic Copolymer
Rubber & Elastomer
PVC
Polyurethane (PU)
Adhesive & Sealant
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