China AO412S Suppliers - High-Quality White Crystalline Powder from Reliable Factory, CAS 29598-76-3
Product Description
| Chemical Name | Pentaerythritol tetris (3-lauryl thiopropionate) | ||
| CAS Number | 29598-76-3 | ||
| Molecular Structure |
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| Product Form | White crystalline powder | ||
| Specifications | TEST | SPECIFICATION | |
| Melting Point | 48–52 ℃ | ||
| Volatile Matter | ≤ 0.5% | ||
| Ash Content | ≤ 0.1% | ||
| Acid Number (mgKOH/g) | ≤ 1 | ||
| Solubility (g / 100 ml solvent) | |||
| Acetone | 2.5 | ||
| Benzene | 83 | ||
| N-Hexane | 20.7 | ||
| Methanol | < 0.01 | ||
| Water | < 0.01 | ||
| Application |
★ Key Info
AO 412S is a low-volatility, high-molecular-weight organosulfur-containing antioxidant, specifically developed for polyolefins and engineering plastics. It is particularly suited for products demanding high-temperature resistance and long-term aging performance.
When compounded with hindered phenolic primary antioxidants, AO 412S delivers superior stability compared to traditional thioether antioxidants (e.g., DLTDP, DSTDP). Boasting excellent anti-extraction and anti-migration properties, this product is ideal for polyolefin end products prone to water impregnation or used under harsh climatic conditions, and also holds significant application value in polymer fibers.
AO 412S is suitable for long-term aging resistance applications in engineering plastics such as PP, PE, ABS, PS, PA, and PC. It is especially well-suited for low-volatility thin-walled products, thin-film materials, and polymer fibers. Its outstanding anti-extraction and anti-migration capabilities make it particularly applicable to high-temperature plumbing systems, washing machines, and dishwashers.
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AO 412S offers outstanding anti-extraction and anti-migration performance, making it the preferred antioxidant choice for high-temperature and moisture-exposed polymer applications.
Frequently Asked Questions
Q
What is AO 412S and what is its CAS number?
AO 412S is the trade name for Pentaerythritol tetris (3-lauryl thiopropionate), a high-molecular-weight organosulfur antioxidant with the CAS number 29598-76-3. It appears as a white crystalline powder with a melting point of 48–52 ℃.
Q
Which polymers is AO 412S compatible with?
AO 412S is compatible with a wide range of engineering plastics and polyolefins, including PP, PE, ABS, PS, PA, and PC. It is especially effective in thin-walled products, thin-film materials, and polymer fibers where low volatility is critical.
Q
How does AO 412S compare to traditional thioether antioxidants like DLTDP and DSTDP?
When used in combination with hindered phenolic primary antioxidants, AO 412S delivers superior thermal and long-term aging stability compared to conventional thioether antioxidants such as DLTDP and DSTDP. Its higher molecular weight also results in significantly lower volatility.
Q
What are the anti-extraction and anti-migration properties of AO 412S?
AO 412S exhibits excellent anti-extraction and anti-migration characteristics, meaning it resists being washed out or displaced during use. This makes it highly suitable for polyolefin products exposed to water impregnation, harsh climates, or high-temperature environments such as plumbing systems, washing machines, and dishwashers.
Q
What is the solubility of AO 412S in common solvents?
AO 412S shows good solubility in organic solvents: Benzene (83 g/100 ml), N-Hexane (20.7 g/100 ml), and Acetone (2.5 g/100 ml). It has very low solubility in polar solvents such as Methanol and Water (both < 0.01 g/100 ml), which contributes to its excellent anti-extraction performance in aqueous environments.
Q
Is AO 412S suitable for high-temperature applications?
Yes. AO 412S is specifically developed for applications requiring high-temperature resistance and long-term aging performance. Its low volatility makes it particularly well-suited for thin-walled products, film materials, and high-temperature plumbing systems where conventional antioxidants may evaporate or migrate over time.