Dioctyl Adipate (DOA) 99.5% Purity Sinopec Brand Plastic & Rubber Auxiliary Agents

Product Description

Product Description

Dioctyl Adipate (DOA)

    Dioctyl Adipate (DOA), chemically known as bis(2-ethylhexyl) adipate, is a clear, colorless to light-yellow oily liquid belonging to the family of adipate esters. It is produced by the esterification of adipic acid with 2-ethylhexanol. DOA is widely recognized as a typical cold-resistant plasticizer with high plasticizing efficiency and excellent low-temperature flexibility . It offers good resistance to weathering, stable electrical properties, and thermal stability, while being insoluble in water but soluble in most organic solvents . These characteristics make it a preferred additive for applications requiring flexibility at sub-zero temperatures and compliance with food-contact regulations .

Specification

Quality Index
Item	Value
	Super Grade	First Grade	Qualified Grade
Appearance	transparent oily liquid
Color(APHA) ≤	30	40	120
PurityAs Ester% ≥	99.5	99.0	99.0
Acidity (benzene dicarbonic acid)g/cm	0.01	0.015	0.03
Loss on dry (125oC3hr)%≤	0.2	0.3	0.5
Flash point(open)oC ≥	195	192	190
Density20,g/cm3	0.982-0.988
Volume Resistivity ΩM ≥	1.5×1011
Heat decrement % ≤	0.2	0.3	0.5
Water content,%    ≤	0.1	0.15	0.15

Application

Primary Use in Flexible PVC Products

Food-Contact and Medical Applications

    As a cold-resistant plasticizer, DOA is predominantly used in polyvinyl chloride (PVC) formulations to impart excellent low-temperature flexibility and elasticity. It is commonly blended with primary plasticizers like DOP or DOTP in applications such as cold-resistant agricultural films, frozen food packaging films, wire and cable coatings, artificial leather, and flexible sheeting . In plastisol systems, DOA provides low initial viscosity and good viscosity stability, facilitating easier processing and coating formation .

    DOA is approved for use in applications with strict safety requirements, including clear films for food packaging, children's toys, and medical PVC gloves . When used in formulations that must meet food-contact regulations and recommendations, it ensures both functional performance and regulatory compliance, adding an extra layer of consumer health protection .

Compatibility with Other Polymers and Rubbers

Specialty Applications in Sealants and Polyurethanes

    Beyond PVC, DOA exhibits good compatibility with a wide range of materials, including nitrocellulose, ethyl cellulose, most synthetic rubbers (such as NBR, SBR, CR, and PUR), and high-butyryl cellulose acetate butyrates . This versatility allows it to be used as a plasticizer and processing aid in various elastomeric and cellulosic formulations, enhancing low-temperature properties and flexibility.

    In the sealant and polyurethane industries, DOA serves as a functional auxiliary in one-component and two-component polyurethane sealants to enhance performance characteristics . It can also act as a cleaning agent for rigid polyurethane foams to ensure smoother production processing . Additionally, it finds application as a thickener to achieve low viscosity and good stability in certain product formulations .

Packing & Delivery

Packing Details

Delivery Details

Sample Packing: Foil bags
Bulk Packing: 25 kgs bags or jumbo (ton) bags

Sample Shipping: Shipped within 1~3 days after sample order confirmation via FedEx, UPS, DHL or EMS
Bulk Shipping: Shipped within 7~10 days after bulk order confirmation via sea freight or air freight. We will also fully cooperate if customers have familiar freight forwarders.

Company Profile

Shanghai Ethaichem Co., Ltd.

    Shanghai Ethaichem Co., Ltd. is a high-tech manufacturing enterprise specializing in the production of high-performance inorganic pigments & functional chemical materials. With a skilled workforce of over 200 employees & covering an area of 60 acres, the company operates integrated R & D, production and sales facilities capable of producing 100,000 tons of coating raw materials annually. Equipped with advanced manufacturing systems & automated production lines, the company is dedicated to delivering products of consistent quality & reliable performance. It has been certified under ISO 9001, ISO 14001 & OHSAS 18001 management systems, ensuring stringent control over quality, environmental impact & occupational health & safety.

    The company's manufacturing portfolio includes titanium dioxide, zinc oxide, antimony trioxide & a full range of iron oxide pigments (including yellow, orange, black, red & others). These products are widely used across various industries, with a strong emphasis on the paint and coatings sector. Titanium dioxide is recognized for its excellent hiding power and dispersion properties, making it ideal for high-quality architectural & industrial coatings. Zinc oxide is mainly used as a functional pigment and additive to improve the corrosion resistance, weather resistance, antibacterial and mildew resistance of coatings. Antimony trioxide serves as a highly effective flame retardant synergist, widely applied in plastics, rubber & other polymer materials. The iron oxide series offers consistent color stability, weather resistance and durability, making them suitable for demanding applications such as industrial coatings, construction materials & colored concretes. 

    In addition to standard grades, the company provides customized solutions tailored to specific customer requirements,supported by a professional technical team and well-established R & D platforms. Strategically located in Shanghai with efficient logisticsconnections, the company exports its products to markets in Europe, the Americas, the Middle East & Southeast Asia. Committed to innovation andexcellence, Shanghai Ethaichem aims to be a global leader in functionalmaterials, providing superior products and technical support to customersworldwide.

FAQ

Q1: Packing Terms
    Standard packing: 25 kgs bags or jumbo (ton) bags.
    Custom packing is available if you have a legally registered patent for specific packaging or special needs (subject to relevant document confirmation, if applicable).
 
Q2: Payment Terms
    Accepted methods: T/T , Western Union, Bitcoin, Tether (USDT). Confirm your preferred method with our sales team before ordering.
 
Q3: Shipping Method
    Small packages (samples/small-quantity orders): Via international couriers (DHL, UPS, FedEx, EMS).
    Bulk shipments: Sea/air freight arranged based on your order volume and delivery timeline.
 
Q4: Delivery Time
    In-stock products: Shipped within 1~2 business days after receiving your advance payment.
    Custom/non-stock products: Timeline varies by product type and order quantity (clear timeline provided in quotation).
 
Q5: MOQ & Free Samples
    MOQ: Low MOQ for small-batch purchases (specific details in quotation).
    Samples: Not less than 1 kg free for quality testing (customers cover shipping costs).
 
Q6: Order Process
    (1) Inform us of your product requirements (type/specifications) or intended application.
    (2) We issue a detailed quotation based on your needs or professional recommendations.
    (3) After confirming sample quality (if requested), place a official order & pay the advance deposit.
    (4) We arrange production immediately after receiving the deposit (discounts for large-quantity orders).
 
Q7: Product Quality Guarantee
    100% quality inspection for all products before delivery.
    If quality issues arise from our production/inspection, we offer free replacements or refunds (subject to issue confirmation via photos/videos).
 
Q8: Long-Term Mutually Beneficial Cooperation
    Maintain consistent quality and competitive pricing to protect your interests and market competitiveness.
    Treat customers as partners (not just "friends"): conduct business with sincerity, respect geographical/cultural differences & build trust.