RIANOX 1076
A widely used hindered phenolic primary antioxidant with good compatibility with various materials. Typically used in combination with phosphite antioxidants for synergistic stabilization.
| CAS No. | 2082-79-3 |
| Chemical Name | Octadecyl-3-(3′,5′-di-tert-butyl-4′-hydroxyphenyl)propionate |
| Molecular Weight | 531 |
| Melting Range (°C) | 50–55 |
| Appearance | White Powder |
| Density @20°C (g/cm³) | 1.02 |
| Standard Packaging | 20 kg PE Bag |
| Solvent | Solubility |
|---|---|
| Acetone | 19 |
| Chloroform | 57 |
| n-Hexane | 32 |
| Ethanol | 2 |
| Benzene | 57 |
| Ethyl Acetate | 38 |
| Toluene | 50 |
| Water | <0.01 |
| Cyclohexane | 40 |
Polyolefin
Engineering Plastic
Elastomer
Adhesive
PVC
ABS
PS
PMMA
Automotive & Transportation
Building & Construction
Electronics & Appliances
Packaging
Sports & Leisure
Renewable Energy
Healthcare & Medical
Where RIANOX 1076 fits
RIANOX 1076 is a monofunctional hindered phenol with a long C18 chain (molecular weight 531, melting range 50–55 °C). The chain makes it highly compatible with polyolefins and easy to disperse, and it adds little colour. It is smaller than RIANOX 1010, so it is more mobile and slightly more volatile: it suits film, thin parts and processing stabilization better than very long heat ageing. Typical uses:
- LLDPE, LDPE and PP packaging film
- Polystyrene, ABS and other styrenics
- Elastomers and adhesives
- Polyolefin molded parts where low colour matters
Typical use levels
- Polyolefin film and molded parts: 0.05–0.2%, with RIANOX 168
- Styrenics: 0.1–0.3%
- Adhesives and elastomers: 0.1–0.5%
These are starting points. Confirm the level with multiple-pass extrusion (melt flow retention and colour) and oven ageing on your own compound.
Choosing a phenolic antioxidant
How RIANOX 1076 compares with the other hindered phenols we supply:
| Grade | Structure | Mol. weight | Melting point | Best known for |
|---|---|---|---|---|
| RIANOX 1010 | Tetrafunctional phenol | 1178 | 110–125 °C | General-purpose long-term heat stability |
| RIANOX 1076 | Monofunctional, C18 chain | 531 | 50–55 °C | Compatibility and low colour in polyolefins |
| RIANOX 3114 | Isocyanurate trisphenol | 784 | 218–223 °C | Very low volatility, extraction resistance |
| RIANOX 1790 | Isocyanurate trisphenol | 700 | 155–165 °C | Low colour and gas-fade resistance; fibers |
| RIANOX 245 | Asymmetric phenol | 587 | 77–81 °C | Styrenics, POM and polyurethane |
Pairing RIANOX 1076 with co-stabilizers
A phenolic antioxidant traps free radicals but does not remove the hydroperoxides formed during melt processing. Pair RIANOX 1076 with RIANOX 168 phosphite for processing stability and colour, and with RIANOX DSTP thioester for long-term heat ageing. For outdoor parts, add a HALS light stabilizer, and keep thioesters low when you do, because their acidic by-products weaken HALS. Our HALS UV stabilizer guide explains why.
TDS, documents and samples
The full TDS, COA and SDS for RIANOX 1076 are sent by email with the quotation, together with the producer’s REACH and food-contact declarations where applicable. Samples are available for qualification trials. Request the TDS and a quote, or compare the full antioxidants and HALS range.
