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China Suppliers of White Powder CAS 1843-03-4 from Reliable Factory
Product Description
| Chemical name | 1,1,3-TRIS(2-METHYL-4-HYDROXY-5-TERT-BUTYLPHENYL)BUTANE | ||
| Cas No. | 1843-03-4 | ||
| Molecular structure |
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| Product form | White powder | ||
| Specifications | TEST | SPECIFICATION | |
| Melting point (℃) | 181–186 | ||
| Volatile Content (%) | ≤ 0.5 | ||
| Ash (%) | ≤ 0.10 | ||
| Transmittance (%) | |||
| 425 nm | ≥ 80.00 | ||
| Application | ★ Antioxidant CA is a high-efficiency phenolic antioxidant, suitable for a wide range of materials including PP, PE, PVC, polyamides, ABS resins, polystyrenes, and cellulose plastics. It features low volatility, high thermal stability, non-polluting and non-discoloring properties, and maintains stability without decomposition during high-temperature processing—significantly enhancing the heat resistance and oxidation stability of end products. This product also exhibits excellent copper damage inhibition performance, making it particularly suitable for polyolefin cable products. When compounded with DLTDP, DSTDP, or ultraviolet absorbers, it delivers outstanding synergistic effects. The recommended dosage ranges from 0.02% to 0.5%. | ||
| Package | / | ||
Frequently Asked Questions
Q
What is Antioxidant CA (CAS No. 1843-03-4) used for?
Antioxidant CA is a high-efficiency phenolic antioxidant used to enhance the heat resistance and oxidation stability of a wide range of polymer materials, including PP, PE, PVC, polyamides, ABS resins, polystyrenes, and cellulose plastics. It is also especially well-suited for polyolefin cable products due to its copper damage inhibition properties.
Q
What is the recommended dosage of Antioxidant CA?
The recommended dosage of Antioxidant CA ranges from 0.02% to 0.5%, depending on the specific application and the type of polymer being processed.
Q
Can Antioxidant CA be used in combination with other stabilizers?
Yes. Antioxidant CA delivers outstanding synergistic effects when compounded with DLTDP, DSTDP, or ultraviolet (UV) absorbers, making it an excellent choice for multi-component stabilizer systems.
Q
What is the physical form and melting point of Antioxidant CA?
Antioxidant CA is a white powder with a melting point range of 181–186 ℃. It also meets strict specifications for volatile content (≤ 0.5%), ash content (≤ 0.10%), and transmittance at 425 nm (≥ 80.00%).
Q
Does Antioxidant CA cause discoloration or pollution during processing?
No. Antioxidant CA is specifically formulated to be non-polluting and non-discoloring. It maintains stability without decomposition during high-temperature processing, making it safe for use in applications where color and purity are critical.
Q
Why is Antioxidant CA particularly suitable for polyolefin cable products?
Antioxidant CA exhibits excellent copper damage inhibition performance, which is a critical requirement in polyolefin cable applications where prolonged contact with copper conductors can accelerate polymer degradation. Its high thermal stability and low volatility further ensure long-term performance in cable insulation and jacketing materials.

