Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Plastics & Elastomers Functions
- CAS No.
- 2082-79-3
- EC No.
- 218-216-0
- Technologies
- Product Families
- Chemical name
Octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate
- CAS number
2082-79-3
- Chemical Structure
Features & Benefits
- Materials Features
- Features & Benefits
PUREstab 1076 can be used in combination with other additives such as co-stabilizers, e.g. thioethers (long term heat stabilizers), phosphites, phosphonites (secondary antioxidant), light stabilizers and other functional stabilizers. It is of particular interest to mention the enhanced effectiveness obtained by combining PUREstab 1076 with PUREfos 168.
Applications & Uses
- Compatible Polymers & Resins
- Applications
At concentrations of 0.05% - 0.2%, PUREstab 1076 is providing long-term thermal stability to the polymer. In polyolefins the recommended concentration levels range between 0.1% and 0.4% depending on the matrix, processing conditions and longterm thermal stability requirements. For styrene homo- and copolymers it is ranging from 0.1 to 0.3%, in hot melt adhesives, from 0.2% to 1.0%, in synthetic tackifier resins, from 0.1% to 0.5%.
- Guidelines for Use
At concentrations of 0.05% - 0.2%, PUREstab 1076 is providing long-term thermal stability to the polymer. Nevertheless, concentrations up to several percent may be suitable depending on the requirement of the end application and the substrate to be stabilized.
In polyolefins the recommended concentration levels of PUREstab 1076 range between 0.1% and 0.4% depending on the matrix, processing conditions and longterm thermal stability requirements. The optimum level has to be determined depending on the application requirement.
The concentration levels of PUREstab 1076 recommended:
- for styrene homo- and copolymers is ranging from 0.1 to 0.3%
- in hot melt adhesives it is ranging from 0.2% to 1.0%,
- in synthetic tackifier resins it is ranging from 0.1% and 0.5%.
Properties
- Color
- Appearance
- White fine flowing powder
- Soluble in
- Water, Ethanol, Chloroform, Acetone, Methanol, Benzene, Ethyl Acetate, toluene, Cyclohexane, N-hexane
- Physical Properties
- Solubility
| Value | Units | Test Method / Conditions | |
| Melting Range | 50 - 55 | °C | — |
| Flash Point | min. 270 | °C | — |
| Vapor Pressure (at 20°C) | 2.5e-07 | Pa | — |
| Bulk Density (Powder) | 500 - 650 | g/l | — |
| Value | Units | Test Method / Conditions | |
| Acetone (at 20°C) | 19.0 | g/100g | — |
| Chloroform (at 20°C) | 57.0 | g/100g | — |
| Ethyl Acetate (at 20°C) | 38.0 | g/100g | — |
| Methanol (at 20°C) | 0.6 | g/100g | — |
| Cyclohexane (at 20°C) | 49.0 | g/100g | — |
| Benzene (at 20°C) | 57.0 | g/100g | — |
| Ethanol (at 20°C) | 1.5 | g/100g | — |
| n-Hexane (at 20°C) | 32.0 | g/100g | — |
| Toluene (at 20°C) | 50.0 | g/100g | — |
| Water (at 20°C) | max. 0.01 | g/100g | — |
Technical Details & Test Data
- Molecular weight
531 g/mol
Safety & Health
- Handling & Safety
In accordance with good industrial practice, handle with care and avoid unnecessary - personal contact. Avoid continuous or repetitive breathing of dust. Use only with adequate ventilation. Avoid dust formation and ignition sources. For more detailed information please refer to the material safety data sheet.
Storage & Handling
- Storage
This product may be stored in a sealed container. Containers should be kept tightly closed when not in use and stored in a cool, dry place.