Antioxidant 245: properties, applications and safety

General Description

Antioxidant 245 is a versatile chemical used as an additive in various industries. It possesses excellent antioxidant properties, low volatility, high color stability, and is odorless. It offers protection against thermo-oxidative degradation and is compatible with a wide range of polymers. Antioxidant 245 is primarily used for processing, long-term thermal stabilization, and as a chain stopper during PVC polymerization. It should be handled with care, avoiding inhalation, skin and eye contact. Adequate ventilation and personal protective equipment should be used during handling. Proper storage and emergency measures should be implemented. In summary, Antioxidant 245 enhances durability and performance in a variety of applications, making it a valuable component for many industries.

Figure 1. Antioxidant 245

Properties

Antioxidant 245 possesses a range of beneficial properties that make it a valuable additive in various industries. Firstly, Antioxidant 245 exhibits excellent antioxidant properties. It effectively inhibits the oxidation process, preventing the deterioration of materials caused by exposure to oxygen and heat. This property is crucial for extending the lifespan and maintaining the quality of products. Secondly, it demonstrates low volatility, ensuring minimal loss during processing and application. This feature enhances its efficiency and makes it suitable for long-term applications. Another noteworthy property is its high color stability. Antioxidant 245 helps preserve the aesthetic appeal of materials, preventing discoloration and maintaining their visual integrity over time. Additionally, Antioxidant 245 is odorless, ensuring that it does not affect the sensory experience or create unpleasant smells in end products. Moreover, this antioxidant offers outstanding extraction resistance, protecting the substrates from degradation caused by extraction processes or contact with solvents. Overall, Antioxidant 245's combination of antioxidant effectiveness, low volatility, color stability, odorlessness, and extraction resistance make it a reliable choice for enhancing durability, maintaining visual appeal, and ensuring long-term performance of various materials across different applications. ¹

Applications

Antioxidant 245 is a versatile antioxidant primarily used for processing and long-term thermal stabilization. It offers several valuable properties, such as low volatility, excellent color stability, and being odorless. One of its notable features is its high extraction resistance, making it an ideal choice for various applications. One of the key benefits of Antioxidant 245 is its ability to protect substrates from thermo-oxidative degradation throughout the manufacturing, processing, and end-use stages. It is highly compatible with styrene polymers, including polystyrenes, ABS, MBS, SB, SBR, as well as POM homo-and copolymers. Furthermore, it demonstrates compatibility with polyurethanes, polyamides, thermoplastic polyesters, PVC, and several other polymers. During PVC polymerization, Antioxidant 245 is particularly effective as a chain stopper. To ensure long-term thermal stability, it is recommended to use a dosage level of 0.05-0.1%. However, depending on the specific substrate and the requirements of the end application, concentrations up to 1.0% can be utilized. Overall, Antioxidant 245 offers exceptional protection against thermo-oxidative degradation and is widely applicable across various polymer-based industries, making it an essential component for enhancing product durability and performance. ²

Safety

Antioxidant 245 is a chemical that is used as an antioxidant in various industrial processes. It is important to handle this chemical with care to ensure safety. In case of inhalation, move the victim to fresh air and provide oxygen if breathing is difficult. If not breathing, provide artificial respiration and seek medical attention. Skin contact should be avoided, but if it occurs, contaminated clothing should be removed and the affected area washed with soap and plenty of water. Eye contact should be rinsed with water for at least 15 minutes and medical attention should be sought. Ingestion should be avoided, but if it occurs, rinse the mouth with water and seek medical attention immediately - vomiting should not be induced. Adequate ventilation is required when handling this chemical and personal protective equipment including chemical impermeable gloves and fire/flame resistant clothing should be worn to avoid skin contact. The container should be tightly closed and stored in a dry, cool, and well-ventilated place apart from foodstuff containers or incompatible materials. Emergency exits should be set up and the risk-elimination area should be identified. ³

Reference

1. PubChem. Compound Summary: Triethylene glycol bis(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate. National Library of Medicine, 2005, CID: 91620

2. Antioxidant 245. Echemi, CAS No: 36443-68-2.

3. Chemical Safety Data Sheet: Antioxidant 245. Chemicalbook, 2023.

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