General Info
Product Name
Bis(2-ethylhexyl) Terephthalate
Physical Properties
Product Name |
Bis(2-ethylhexyl) terephthalate |
Cas Number |
6422-86-2 |
Formula |
C24H38O4 |
Molar Mass |
390.56 g/mol |
Property 1 |
Appearance: Clear, colorless liquid |
Property 2 |
Density: 0.98 g/cm³ |
Property 3 |
Boiling Point: 340 °C |
Property 4 |
Melting Point: -50 °C |
Property 5 |
Refractive Index: 1.485 |
Property 6 |
Flash Point: 210 °C |
Property 7 |
Vapor Pressure: 0.000045 mmHg at 25 °C |
Property 8 |
Viscosity: 87 cP at 20 °C |
Property 9 |
Solubility: Insoluble in water |
Property 10 |
Log P: 8.52 |
FAQ
What is Bis(2-ethylhexyl) terephthalate (DEHT) and what are its primary uses in
industry?
Bis(2-ethylhexyl) terephthalate, commonly known as DEHT, is a clear, colorless
plasticizer with excellent performance characteristics. Plasticizers are substances added to materials
to increase their flexibility, workability, and durability. DEHT is particularly noted for its use as a
plasticizer in polyvinyl chloride (PVC) products, which are widely used across various industries due to
their durability and versatility. Unlike some other plasticizers, DEHT is phthalate-free, which makes it
a favorable option in applications where safety and environmental factors are paramount. Its chemical
structure grants it extraordinary resistance to high temperatures, ultraviolet exposure, and mechanical
stress, ultimately extending the lifespan of products in which it is used.
In industrial
settings, DEHT is primarily utilized in the production of flexible vinyl products. This includes cables,
flooring, wall coverings, and a wide range of everyday consumer products like shower curtains, garden
hoses, and synthetic leather. Industries that produce medical devices and toys often prefer DEHT due to
its non-toxic nature; it does not leach out of products during use, which is a significant advantage
when health concerns are considered. Furthermore, DEHT complies with various international standards for
safety and environmental impact, including those set by the European Union and the U.S. Environmental
Protection Agency. These compliance credentials make DEHT a trusted choice for manufacturers looking to
produce high-quality, safe products.
Moreover, DEHT's effectiveness as a plasticizer extends to
its ability to enhance product characteristics, making end-products more appealing and durable. Its use
improves the abrasion resistance, clarity, and flexibility of PVC, enabling manufacturers to achieve the
precise consistency and performance required for their applications. Its chemical stability also means
that products remain functional even under stressful conditions, which is crucial in automotive,
construction, and electronic industries. These diverse applications underscore DEHT's importance as a
plasticizer and its contribution to producing long-lasting, high-performance products.
What are
the environmental and health benefits of using DEHT over other common plasticizers?
Using
Bis(2-ethylhexyl) terephthalate, or DEHT, has various environmental and health benefits, particularly
when compared to traditional phthalate-based plasticizers. Concerns over the environmental and health
impacts of phthalates have grown significantly in recent years. Many of these chemicals are linked to
hormonal disruptions and other health concerns; this has escalated the demand for safer alternatives.
DEHT stands out as an attractive replacement due to its benign safety profile. As a non-phthalate
plasticizer, DEHT does not possess the endocrine-disrupting properties associated with certain
phthalates, which can interfere with hormone systems and potentially lead to adverse developmental,
reproductive, neurological, and immunological effects in humans and wildlife.
Environmentally,
DEHT has a relatively low volatility, which means less off-gassing during its application and use. This
property minimizes potential air pollution and provides a cleaner alternative to more volatile
plasticizers. Additionally, its resistance to leaching not only makes it safer for human use but also
reduces its environmental footprint when it comes to outdoor or water-exposed products. By being more
resistant to degradation and leaching, DEHT reduces the risk of environmental contamination, helping to
safeguard ecosystems wherein it's used.
Another benefit is that DEHT is readily biodegradable,
reducing its long-term environmental impact. Many studies demonstrate that DEHT breaks down in the
environment at a reasonable pace without forming persistent or harmful intermediates. This
characteristic supports its role in a circular economy and aligns with increasing global emphasis on
reducing plastics pollution. Moreover, compliance with stringent regulatory standards ensures that DEHT
is a safe addition to consumer products, making it an excellent choice for manufacturers who are
committed to sustainable practices and the creation of eco-friendly goods. Using DEHT helps companies
meet these growing societal and regulatory demands, ultimately promoting safer and more sustainable
industrial processes.
Replacing phthalate plasticizers with DEHT contributes towards a
significant decrease in the total ecological footprint of industrial manufacturing processes.
Consequently, DEHT assists manufacturers in circulating products that ensure consumer safety while
promoting eco-conservation through reduced hazardous emissions and minimal environmental disruptiveness.
Its integration into industry encourages a greener, more responsible approach to manufacturing in line
with regulatory compliance and consumer preference trends toward sustainable materials.
How does
DEHT compare in terms of performance and safety when used in PVC applications?
When it comes to
performance and safety in PVC applications, Bis(2-ethylhexyl) terephthalate (DEHT) is highly regarded as
a superior choice compared to other plasticizers, particularly phthalate-based ones. DEHT offers
excellent plasticizing efficiency, which translates to high flexibility and workability of PVC products.
This efficiency ensures the longevity and durability of the materials, which is crucial in high-stress
and high-temperature applications such as automotive interiors, electrical cables, and vinyl flooring.
With such performances, DEHT helps in maintaining the structural integrity and functional attributes of
PVC products over a long period, thus significantly adding value.
The safety of DEHT in PVC
applications cannot be overstated. As a non-phthalate plasticizer, DEHT represents a safer alternative
to traditional phthalates, which have raised concerns over human health and environmental toxicity.
Phthalates like DEHP have been scrutinized for their potential endocrine-disrupting effects, leading to
restrictions in certain applications, especially in the EU and other regions. DEHT, on the other hand,
has been extensively studied and found not to exhibit these harmful characteristics, making it compliant
with a variety of safety and environmental standards globally. This compliance is crucial in sensitive
applications such as children’s toys, food contact materials, and medical devices where safety is
paramount.
Moreover, DEHT enhances the physical properties of PVC without compromising on clarity
or aesthetic qualities. Its excellent low-temperature performance and high resistance to UV light and
moisture make DEHT an ideal plasticizer for outdoor applications where exposure to environmental
elements is common. This attribute is essential for construction materials, automotive exteriors, and
packaging that consumers and industries rely on for quality and reliability over time.
From a
processing perspective, DEHT effortlessly integrates with existing production setups, allowing
manufacturers to transition from other plasticizers without significant alterations in method or cost.
This adaptability further underlines its practicality without demanding additional investment.
Importantly, due to its low volatility, DEHT helps in reducing VOC emissions during production, which
addresses concerns around workplace safety and indoor air quality associated with manufacturing
processes. Consequently, DEHT not only meets but often exceeds the performance and safety requirements
demanded in both domestic and industrial PVC applications.
Choosing DEHT also aligns
manufacturers with an evolving market preference for safer and environmentally friendly materials. As
consumers become increasingly aware of the implications of product ingredients, using DEHT provides a
market edge, allowing brands to transparently champion safety and sustainability. Therefore, in terms of
both safety and performance, DEHT has carved out a significant advantage as an innovative and trusted
plasticizer for a wide range of PVC applications.
What certifications and standards does DEHT
comply with?
Bis(2-ethylhexyl) terephthalate (DEHT) is recognized for its compliance with an
array of international standards and certifications, establishing it as a reliable and safe plasticizer
in various markets around the world. Understanding these certifications is crucial for manufacturers
aiming to meet regulatory compliance and sustainability benchmarks. DEHT’s adherence to strict safety
and environmental standards underscores its utility as a preferable plasticizer, especially in sensitive
applications.
Primarily, DEHT complies with the European Union’s REACH regulation, which stands
for Registration, Evaluation, Authorisation, and Restriction of Chemicals. REACH emphasizes the
responsibility of manufacturers to manage risks associated with chemicals produced and marketed within
the EU. DEHT's compliance ensures that it is not classified as a substance of very high concern (SVHC),
and it fulfills obligations regarding safe placement on the market and usage in Europe. This compliance
is vital for manufacturers looking to operate within the European Economic Area, as it assures adherence
to some of the most stringent chemical safety standards worldwide.
In the United States, the
Environmental Protection Agency (EPA) has assessed DEHT and confirmed its safety for use. Additionally,
it is included in GRAS (Generally Recognized As Safe) lists for specific applications and deemed safe
for use in sensitive products like children's toys, food contact materials, and medical devices. This is
a critical assurance, given the health implications and regulatory challenges associated with other
plasticizers such as phthalates.
DEHT also complies with standards set by organizations such as
the Food and Drug Administration (FDA), which permits its use in certain indirect food applications.
This makes DEHT suitable for use in gaskets or other materials that might come in contact with food
products. Certification with FDA standards ensures that DEHT can safely be employed in applications
where human exposure potential is higher, emphasizing its suitability for diverse product
categories.
Furthermore, DEHT is in line with various ISO standards relevant to plasticizers,
ensuring quality management and continuous improvement in production processes. Such compliance
facilitates global acceptance and encourages ease of trade, as product consistency and safety assurance
are maintained across different international borders.
The plasticizer industry trends
increasingly towards sustainable practices, and DEHT’s certifications also reflect adherence to
eco-friendly processes and production techniques. By meeting these rigorous national and international
standards, DEHT provides manufacturing industries with confidence regarding product safety and
environmental considerations, aligning with both regulatory demands and consumer expectations. In
conclusion, DEHT’s extensive compliance establishes it as a front-running plasticizer in terms of
safety, quality, and sustainability across multiple regions and industries.
How does DEHT
contribute to sustainability in industrial applications?
Bis(2-ethylhexyl) terephthalate (DEHT)
plays a significant role in enhancing sustainability within industrial applications, owing to its
non-toxic nature, recyclability, and environmental compliance. As industries strive for greater
sustainability, the integration of DEHT becomes a strategic choice for manufacturers committed to
reducing their ecological footprint and aligning with global initiatives toward sustainable
development.
DEHT’s environmental benefits begin with its composition. As a non-phthalate
plasticizer, DEHT is devoid of the hazardous properties associated with traditional phthalates, which
have been subject to restrictions and bans due to their potential health and environmental risks. This
aspect alone makes DEHT a more sustainable choice, reducing the risk of adverse effects from plasticizer
use both during manufacturing and in end-use consumer interactions. Its structure contributes to lower
volatile organic compound (VOC) emissions, minimizing air pollution and enhancing the quality of indoor
environments where such emissions could be detrimental.
One of the principal sustainability
factors of DEHT is its biodegradability. Unlike some plasticizers, studies have demonstrated DEHT’s
ability to break down in natural environments without accumulating or generating harmful by-products.
This characteristic is crucial in minimizing long-term pollution and promoting a cleaner lifecycle for
products utilizing DEHT. The ability to break down effectively contributes to lowering plastic waste
impacts on ecosystems, aligning DEHT with numerous international efforts aimed at plastics reduction and
sustainable materials management.
The recyclability of materials containing DEHT further
underscores its sustainable attributes. Products manufactured with DEHT can often be recycled without
degrading quality, supporting circular economy practices that rely on reusing materials rather than
continual new production. This recycling capability reduces the demand for raw materials, leading to
less resource extraction, lower energy consumption, and diminished greenhouse gas emissions during
material production.
Moreover, because DEHT complies with stringent environmental certifications
such as the EU’s REACH and the U.S. EPA standards, industries can leverage its use to not only fulfill
regulatory obligations but also to appeal to eco-conscious consumers and investors. Companies adopting
DEHT demonstrate a commitment to safety and environmental stewardship, which is increasingly valued in
global markets. This commitment enhances brand reputation while also contributing to broader
environmental objectives, like reducing carbon footprints and safeguarding
biodiversity.
Additionally, industries find that using DEHT aligns with sustainable development
goals by improving the efficiency and longevity of products. This improved efficiency translates to less
frequent replacements, thereby optimizing resource use and reducing waste. DEHT’s ability to contribute
to the creation of durable, long-lasting products not only improves life-cycle performance but also
supports sustainable consumption patterns by extending product usability.
In summary, DEHT
fosters sustainability across multiple vectors within industrial applications. Its environmentally
benign make-up, recyclability, regulatory compliance, and ability to enhance product lifecycle
considerably contribute to reducing the environmental burden of modern industrial production. This
alignment with sustainable practices positions DEHT as a vanguard plasticizer in efforts to create a
more sustainable future.
What makes DEHT a preferred choice for sensitive applications like
medical devices and toys?
Bis(2-ethylhexyl) terephthalate (DEHT) distinguishes itself as an
excellent choice for sensitive applications such as medical devices and toys due to its safety profile
and exceptional performance characteristics. The rigorous safety requirements in these applications
necessitate materials that pose minimal health risks during prolonged exposure or handling. DEHT’s
formulation, devoid of hazardous phthalate components, makes it a benign choice that aligns with
industry safety standards crucial for products in direct contact with vulnerable populations, including
children and patients.
In the realm of medical devices, materials must comply with stringent
regulatory frameworks that ensure biocompatibility and non-toxicity. DEHT’s non-phthalate nature means
it does not interfere with biological functions, a critical consideration in devices or components that
come in contact with bodily tissues or fluids. Medical applications demand plasticizers that remain
inert, stable under sterilization processes, and compatible with stringent hygiene standards. DEHT’s
stability under various conditions, including heat and radiation sterilization commonly employed in
medical settings, ensures equipment reliability and safety. Additionally, its outstanding chemical
resistance maintains the structural integrity of medical devices, validating its applicability in
diverse healthcare settings ranging from fluid bags to tubing and seals.
For toys, the safety and
well-being of children are paramount. Regulatory standards like the European Toy Safety Directive and
the Consumer Product Safety Improvement Act in the United States restrict harmful substances such as
phthalates in toys. DEHT’s compliance with these and other standards reassures manufacturers and
consumers of its safety. It does not emit volatile organic compounds or leach harmful chemicals during
handling or use, making it a preferred plasticizer for toys that children frequently come in contact
with or place in their mouths. The flexibility and durability imparted by DEHT facilitate the design and
production of toys that conform to rigorous safety testing without compromising on play
value.
DEHT’s performance attributes complement its safety benefits in these applications. Its
chemical structure yields plasticized materials with high elasticity, unbeatable clarity, and superior
resistance to wear and tear — qualities fundamental to both medical and toy applications. This
durability ensures extended product life-cycles, reducing the frequency of replacements and,
consequently, environmental impact. This feature is particularly notable in toys, where physical rigor
and continuous use necessitate materials that withstand stress and deformation.
Furthermore,
DEHT’s ease of processing means manufacturers can incorporate it into existing production methodologies
without major modifications, preserving production efficiency while advancing safety standards. This
integration advantage becomes particularly significant for industries that focus on high-volume
production while maintaining adherence to regulatory safety standards.
The safety, regulatory
compliance, and processing advantages of DEHT make it a go-to plasticizer for manufacturers dedicated to
producing high-quality, safe, and reliable products. Its suitability extends across applications
requiring both consumer safety assurance and exceptional performance. Ultimately, DEHT provides a
responsible material choice that supports industry-wide goals of product safety and sustainability,
especially in applications that directly impact health and wellness.