China Suppliers Factory for AO412S - White Crystalline Powder with CAS Number 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/100ml solvent) | |||
| Acetone | 2.5 | ||
| Benzene | 83 | ||
| N-Hexane | 20.7 | ||
| Methanol | < 0.01 | ||
| Water | < 0.01 | ||
| Application |
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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.
PP
PE
ABS
PS
PA
PC
Polymer Fibers
Thin-Film Materials
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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 low-volatility, high-molecular-weight organosulfur-containing antioxidant. Its CAS number is 29598-76-3. It appears as a white crystalline powder with a melting point of 48–52 ℃.
Q
Which polymers and plastics 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 also highly effective in polymer fiber applications, thin-walled products, and thin-film materials.
Q
How does AO 412S compare to traditional thioether antioxidants like DLTDP and DSTDP?
When compounded with hindered phenolic primary antioxidants, AO 412S delivers superior thermal stability and long-term aging performance compared to traditional thioether antioxidants such as DLTDP and DSTDP. Its higher molecular weight also results in significantly lower volatility, making it more suitable for demanding processing conditions.
Q
What makes AO 412S suitable for water-contact or harsh-environment applications?
AO 412S features excellent anti-extraction and anti-migration properties, meaning it resists being washed out or displaced even in water-impregnated or climatically harsh environments. This makes it particularly well-suited for high-temperature plumbing systems, washing machines, and dishwashers.
Q
What are the key physical and chemical specifications of AO 412S?
The key specifications of AO 412S include: Melting Point 48–52 ℃, Volatile Matter ≤ 0.5%, Ash Content ≤ 0.1%, and Acid Number ≤ 1 mgKOH/g. It shows very low solubility in polar solvents like methanol and water (< 0.01 g/100ml), while being highly soluble in benzene (83 g/100ml).
Q
Is AO 412S recommended for use in thin-film and fiber products?
Yes. Due to its low volatility and high molecular weight, AO 412S is especially well-suited for thin-walled products, thin-film materials, and polymer fibers, where conventional antioxidants may evaporate or migrate during high-temperature processing or prolonged use.