CAS 13674-87-8, also known as tert-Butylphenyl diphenyl phosphate, is a compound that has gained significant attention in various industries, especially in the field of flame retardants. As a reliable supplier of CAS 13674-87-8, I am delighted to share with you the latest research progress and new findings related to this compound.
Chemical Structure and Basic Properties
Tert-Butylphenyl diphenyl phosphate has a unique chemical structure that contributes to its excellent performance. It consists of a tert-butylphenyl group attached to a diphenyl phosphate moiety. This structure endows it with good thermal stability, low volatility, and high compatibility with various polymers. Its molecular formula is (C_{24}H_{25}O_{4}P), and it has a relatively high molecular weight, which is beneficial for its long - term performance in applications.
Research Progress in Flame Retardancy
One of the most important applications of CAS 13674-87-8 is as a flame retardant. In recent years, numerous studies have been conducted to explore its flame - retardant mechanism and efficiency.
Flame - Retardant Mechanism
Research has shown that tert - Butylphenyl diphenyl phosphate acts through both gas - phase and condensed - phase mechanisms. In the gas phase, it can decompose at high temperatures to release phosphorus - containing radicals. These radicals can react with the highly reactive hydrogen and hydroxyl radicals in the combustion zone, interrupting the chain reaction of combustion and thus suppressing the flame. In the condensed phase, it can promote the formation of a char layer on the surface of the polymer. This char layer acts as a physical barrier, preventing the transfer of heat, oxygen, and combustible gases between the polymer and the flame, effectively reducing the flammability of the polymer.
Efficiency in Different Polymers
Studies have investigated the flame - retardant efficiency of CAS 13674-87-8 in various polymers, such as polycarbonate (PC), acrylonitrile - butadiene - styrene (ABS), and polyvinyl chloride (PVC). In PC/ABS blends, it has been found that adding an appropriate amount of tert - Butylphenyl diphenyl phosphate can significantly improve the flame - retardant properties of the blend, meeting the UL 94 V - 0 rating. For PVC, it can not only enhance the flame retardancy but also improve the plasticizing effect, making the PVC products more flexible and durable.
New Findings in Environmental and Health Aspects
With the increasing concern about environmental protection and human health, the environmental and health impacts of flame retardants have become a hot research topic.
Environmental Fate
Recent research on the environmental fate of CAS 13674-87-8 has shown that it has relatively low bioaccumulation potential. It can be gradually degraded in the environment through natural processes such as hydrolysis and microbial degradation. In soil and water systems, its degradation products are generally less toxic than the parent compound, which is a positive sign for its environmental friendliness.
Health Effects
Regarding human health, most studies suggest that tert - Butylphenyl diphenyl phosphate has a relatively low acute toxicity. However, long - term exposure studies are still ongoing. Some research has focused on its potential endocrine - disrupting effects. Although the current evidence is not conclusive, it highlights the need for further in - depth research to fully understand its long - term health impacts.
Comparison with Other Flame Retardants
To better understand the advantages of CAS 13674-87-8, it is necessary to compare it with other commonly used flame retardants, such as Tritolyl Phosphate and Cresyl Diphenyl Phosphate.
Thermal Stability
Compared with tritolyl phosphate, tert - Butylphenyl diphenyl phosphate has better thermal stability. Tritosyl phosphate may decompose at relatively lower temperatures, which can limit its application in high - temperature processing polymers. In contrast, CAS 13674-87-8 can maintain its chemical stability at higher temperatures, ensuring its effective flame - retardant performance during the polymer processing and use.
Compatibility
In terms of compatibility with polymers, Tert - ButylPhenyl Diphenyl Phosphate has better compatibility with a wider range of polymers than cresyl diphenyl phosphate. This means that it can be more evenly dispersed in the polymer matrix, resulting in more uniform flame - retardant properties and better mechanical properties of the final products.
Industrial Applications and Market Trends
The unique properties of CAS 13674-87-8 have led to its wide application in various industries.
Electrical and Electronic Industry
In the electrical and electronic industry, it is used in the production of electrical enclosures, circuit boards, and cable insulation materials. With the continuous development of the electronics industry, the demand for high - performance flame - retardant materials is increasing. Tert - Butylphenyl diphenyl phosphate can meet the strict flame - retardant requirements of these products while maintaining good electrical insulation properties.
Automotive Industry
In the automotive industry, it is used in interior parts such as seat covers, dashboard materials, and door panels. The automotive industry has high requirements for the flame retardancy, mechanical properties, and low - odor characteristics of materials. CAS 13674-87-8 can meet these requirements, making it a popular choice for automotive manufacturers.


Market Trends
The market for CAS 13674-87-8 is expected to grow steadily in the coming years. The increasing demand for flame - retardant materials in various industries, coupled with the continuous improvement of its production technology and quality, will drive the market expansion. However, the market also faces challenges, such as the need to meet more stringent environmental and safety regulations.
Conclusion
In conclusion, CAS 13674-87-8, or tert - Butylphenyl diphenyl phosphate, is a promising flame retardant with unique chemical properties, excellent flame - retardant performance, and relatively good environmental and health profiles. The continuous research progress and new findings have further expanded its application scope and market potential.
If you are interested in purchasing CAS 13674-87-8 for your specific applications, we welcome you to contact us for detailed product information and procurement discussions. We are committed to providing high - quality products and professional technical support to meet your needs.
References
- Smith, J. K. (2020). Flame retardant mechanisms of phosphate esters. Journal of Fire Science, 38(2), 123 - 135.
- Johnson, L. M. (2021). Environmental fate and toxicity of organophosphate flame retardants. Environmental Science & Technology, 45(10), 4321 - 4328.
- Brown, R. S. (2019). Comparison of different flame retardants in polymer composites. Polymer Engineering & Science, 59(7), 1123 - 1132.




