Dioctyl Adipate (DOA)

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Dioctyl Adipate (DOA) is a clear, colorless, oily liquid that acts as a highly efficient, cold-resistant plasticizer. It is an organic compound produced from the reaction of adipic acid with 2-ethylhexanol. DOA is known for imparting excellent low-temperature flexibility and good lubricity to polymer systems. It is insoluble in water but dissolves readily in organic solvents. Technical grade Dioctyl Adipate is manufactured for industrial applications including plastic and rubber processing, coatings, and lubricants.

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Categories: PAINT & COATINGS CHEMICALS, Additives, Industrial Additives, Lubricants, Plasticizers, Plasticizers & Softeners, PLASTICS AND POLYMER MANUFACTURING CHEMICALS, RUBBER PROCESSING CHEMICALS, SPECIALTY AND FINE CHEMICALS Tags: Adipate Plasticizer, Bis(2-ethylhexyl) adipate, Cold Resistant Plasticizer, DEHA, Dioctyl Adipate, DOA, Food Grade Plasticizer, Low Temperature Plasticizer, Medical Grade Plasticizer, PVC Plasticizer

Description

Table of Contents

Dioctyl Adipate (DOA)

Primary Uses

1. Plastics and Polymer Manufacturing Chemicals

Primary plasticizer for polyvinyl chloride (PVC) applications requiring superior low-temperature flexibility including freezer films, refrigerator gaskets, and outdoor cables
Used in food-grade PVC films, wraps, and food contact materials where low migration and low toxicity are required
Applied in medical grade PVC products including blood bags, IV tubing, and medical gloves
Used in plastisol formulations for dip molding, slush molding, and rotational molding applications
Added to polyvinyl butyral (PVB) interlayers for laminated safety glass
Used in cellulose acetate and other polar polymer systems as a processing aid
Applied in polymer dispersions and emulsion formulations

2. Rubber Processing Chemicals

Softener and plasticizer for synthetic rubbers including nitrile rubber (NBR), chloroprene rubber (CR), and styrene-butadiene rubber (SBR)
Used in low-temperature rubber compounds for automotive seals, gaskets, and hoses
Applied in rubber footwear and soling compounds for improved flexibility at cold temperatures
Used in rubber rollers, belts, and industrial rubber goods requiring low-temperature performance

3. Specialty and Fine Chemicals

Used as a lubricant base oil and viscosity modifier in industrial lubricant formulations
Applied as a low-temperature hydraulic fluid additive for cold weather operations
Used in refrigeration compressor oils as a base fluid
Added to metalworking fluids and cutting oils as a lubricity additive

4. Adhesives and Sealants

Used as a plasticizer in pressure sensitive adhesives (PSAs) for tapes, labels, and decals
Applied in contact adhesives and construction adhesives requiring low-temperature flexibility
Used in sealants for automotive, building, and industrial applications

5. Paints and Coatings Chemicals

Used as a coalescing agent and film-forming aid in water-based coating formulations
Applied as a plasticizer in nitrocellulose lacquers and coatings
Used in automotive refinish paints and industrial coatings

Secondary Uses

1. Inks and Printing Products

Used as a plasticizer in flexographic and gravure printing inks for improved film flexibility
Applied in screen printing inks for textiles and industrial applications

2. Cosmetic and Personal Care Chemicals

Used as a plasticizer and film former in nail polish, nail lacquer, and hairspray formulations
Applied as an emollient and spreading agent in creams, lotions, and sunscreens

3. Textile Chemicals

Used as a lubricant and softening agent in textile fiber processing and finishing
Applied in synthetic fiber spinning formulations as a drawing lubricant

4. Wire and Cable Industry

Used in low-temperature wire and cable insulation compounds for cold weather applications
Applied in flexible cord jackets, appliance wiring, and automotive cables

5. Automotive Industry

Used in automotive interior components including dashboards, door panels, and seating requiring cold flexibility
Applied in weatherstripping, window seals, and hose compounds

6. Packaging Industry

Used in flexible packaging films for frozen food storage and cold chain applications
Applied in shrink wrap, stretch film, and food packaging films

KEY PRODUCT FEATURES

1. Basic Identification Attributes

Chemical Name (IUPAC): Bis(2-ethylhexyl) hexanedioate
Common/Trade Name: Dioctyl Adipate; DOA; DEHA; Adipic acid dioctyl ester
CAS Number: 103-23-1
HS Code: 2917.12
EINECS Number: 203-090-1
Molecular Formula: C₂₂H₄₂O₄
Molecular Weight: 370.57 g/mol
Synonyms: Bis(2-ethylhexyl) adipate, DEHA, Adipol 2EH, BEHA, Di(2-ethylhexyl) adipate

2. Physical & Chemical Properties

Physical State: Clear, oily liquid
Color: Colorless to pale yellow
Odor: Mild, characteristic odor
Purity: 99.0% to 99.5% typical
Acid Value: 0.1 mg KOH/g maximum
Water Content: 0.1% maximum
Boiling Point: 214°C at 5 mmHg; 335°C to 400°C at atmospheric pressure
Melting Point: -67°C to -70°C
Flash Point: 193°C to 196°C (closed cup)
Fire Point: 217°C
Density: 0.924 to 0.928 g/cm³ at 20°C
Viscosity: 12 to 15 cP at 25°C
Refractive Index: 1.446 to 1.448 at 20°C
Solubility: Insoluble in water; soluble in most organic solvents including alcohols, ketones, esters, and hydrocarbons
Evaporation Rate: Very slow (negligible at room temperature)

3. Safety & Hazard Attributes

GHS Classification: Not classified as hazardous under normal conditions of use
Toxicity: Low acute toxicity; LD₅₀ oral rat > 3,000 mg/kg
Irritation: May cause mild eye and skin irritation
Flammability: Combustible liquid (but high flash point)
Environmental: Low aquatic toxicity

4. Storage & Handling Attributes

Storage Conditions: Store in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly closed. Protect from moisture.
Container Type: Steel drums, IBC totes, bulk tankers, or HDPE containers
Shelf Life: 24 months when stored under recommended conditions
Handling Precautions: Avoid contact with eyes and skin; use with adequate ventilation; avoid breathing mists or vapors; wash hands thoroughly after handling
Storage Measures: Keep away from strong oxidizing agents and strong acids; protect from moisture ingress; maintain moderate temperature conditions

5. Regulatory & Compliance Attributes

Regulatory Status:
- FDA: Approved for food contact applications under 21 CFR 175.105, 175.300, 176.170, 177.1210, 177.2600, 178.3740
- EU: Compliant with food contact regulations (EU 10/2011)
- TSCA (USA): Listed
- DSL (Canada): Listed
- EINECS: 203-090-1
- REACH: Registered for industrial use
- Swiss Ordinance: Compliant with food contact requirements
Labeling Requirements: Standard industrial chemical labeling; food grade requires specific certification
Use Restrictions: Not for direct human consumption; specific migration limits apply for food contact applications

6. Environmental & Health Impact

Biodegradability: Readily biodegradable (OECD 301)
Ecotoxicity: Low toxicity to aquatic organisms
Bioaccumulation: Low potential for bioaccumulation
VOC Status: Low volatility; not classified as VOC in most jurisdictions

SAFETY HANDLING PRECAUTIONS

1. Safety Handling Precautions

PPE Required: Safety glasses or chemical goggles; chemical-resistant gloves (nitrile recommended); protective clothing; use respiratory protection if mists are generated
Handling Guidelines: Use in well-ventilated areas; avoid generating mists or aerosols; do not eat, drink, or smoke in handling areas; wash hands thoroughly after handling; remove contaminated clothing and launder before reuse
Storage Measures: Store in original, labeled containers with tight-fitting lids; secondary containment recommended for bulk storage; keep away from strong oxidizing agents
Hygiene Practices: Wash hands thoroughly after handling; shower at the end of each work shift

2. First Aid Measures

Inhalation: Move a person to fresh air. If breathing is difficult, administer oxygen. Seek medical attention if symptoms persist.
Skin Contact: Wash skin with plenty of soap and water. Remove contaminated clothing. Seek medical attention if irritation develops.
Eye Contact: Rinse cautiously with lukewarm, gently flowing water for at least fifteen minutes while holding eyelids open. Remove contact lenses if present. Seek medical attention if irritation persists.
Ingestion: Rinse mouth thoroughly with water. Do NOT induce vomiting. Seek medical attention if large quantities are swallowed.

3. Firefighting Measures

Fire Hazards: Combustible liquid. May evolve toxic fumes including carbon monoxide and carbon dioxide when heated to decomposition.
Flash Point: 193°C to 196°C (closed cup)
Extinguishing Media: Use water spray, fog, or mist; alcohol-resistant foam; dry chemical; carbon dioxide. Water spray is preferred for cooling containers.
Special Firefighting Procedures: Wear full protective clothing and self-contained breathing apparatus (SCBA); use water spray to cool exposed containers; contain firefighting runoff to prevent environmental contamination
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, acrid smoke and fumes

Dioctyl Adipate (DOA)

Dioctyl Adipate (DOA)

Primary Uses

1. Plastics and Polymer Manufacturing Chemicals

Primary plasticizer for polyvinyl chloride (PVC) applications requiring superior low-temperature flexibility including freezer films, refrigerator gaskets, and outdoor cables

Used in food-grade PVC films, wraps, and food contact materials where low migration and low toxicity are required

Applied in medical grade PVC products including blood bags, IV tubing, and medical gloves

Used in plastisol formulations for dip molding, slush molding, and rotational molding applications

Added to polyvinyl butyral (PVB) interlayers for laminated safety glass

Used in cellulose acetate and other polar polymer systems as a processing aid

Applied in polymer dispersions and emulsion formulations

2. Rubber Processing Chemicals

Softener and plasticizer for synthetic rubbers including nitrile rubber (NBR), chloroprene rubber (CR), and styrene-butadiene rubber (SBR)

Used in low-temperature rubber compounds for automotive seals, gaskets, and hoses

Applied in rubber footwear and soling compounds for improved flexibility at cold temperatures

Used in rubber rollers, belts, and industrial rubber goods requiring low-temperature performance

3. Specialty and Fine Chemicals

Used as a lubricant base oil and viscosity modifier in industrial lubricant formulations

Applied as a low-temperature hydraulic fluid additive for cold weather operations

Used in refrigeration compressor oils as a base fluid

Added to metalworking fluids and cutting oils as a lubricity additive

4. Adhesives and Sealants

Used as a plasticizer in pressure sensitive adhesives (PSAs) for tapes, labels, and decals

Applied in contact adhesives and construction adhesives requiring low-temperature flexibility

Used in sealants for automotive, building, and industrial applications

5. Paints and Coatings Chemicals

Used as a coalescing agent and film-forming aid in water-based coating formulations

Applied as a plasticizer in nitrocellulose lacquers and coatings

Used in automotive refinish paints and industrial coatings

Secondary Uses

1. Inks and Printing Products

Used as a plasticizer in flexographic and gravure printing inks for improved film flexibility

Applied in screen printing inks for textiles and industrial applications

2. Cosmetic and Personal Care Chemicals

Used as a plasticizer and film former in nail polish, nail lacquer, and hairspray formulations

Applied as an emollient and spreading agent in creams, lotions, and sunscreens

3. Textile Chemicals

Used as a lubricant and softening agent in textile fiber processing and finishing

Applied in synthetic fiber spinning formulations as a drawing lubricant

4. Wire and Cable Industry

Used in low-temperature wire and cable insulation compounds for cold weather applications

Applied in flexible cord jackets, appliance wiring, and automotive cables

5. Automotive Industry

Used in automotive interior components including dashboards, door panels, and seating requiring cold flexibility

Applied in weatherstripping, window seals, and hose compounds

6. Packaging Industry

Used in flexible packaging films for frozen food storage and cold chain applications

Applied in shrink wrap, stretch film, and food packaging films

1. Basic Identification Attributes

Chemical Name (IUPAC): Bis(2-ethylhexyl) hexanedioate

Common/Trade Name: Dioctyl Adipate; DOA; DEHA; Adipic acid dioctyl ester

CAS Number: 103-23-1

HS Code: 2917.12

EINECS Number: 203-090-1

Molecular Formula: C₂₂H₄₂O₄

Molecular Weight: 370.57 g/mol

Synonyms: Bis(2-ethylhexyl) adipate, DEHA, Adipol 2EH, BEHA, Di(2-ethylhexyl) adipate

2. Physical & Chemical Properties

Physical State: Clear, oily liquid

Color: Colorless to pale yellow

Odor: Mild, characteristic odor

Purity: 99.0% to 99.5% typical

Acid Value: 0.1 mg KOH/g maximum

Water Content: 0.1% maximum

Boiling Point: 214°C at 5 mmHg; 335°C to 400°C at atmospheric pressure

Melting Point: -67°C to -70°C

Flash Point: 193°C to 196°C (closed cup)

Fire Point: 217°C

Density: 0.924 to 0.928 g/cm³ at 20°C

Viscosity: 12 to 15 cP at 25°C

Refractive Index: 1.446 to 1.448 at 20°C

Solubility: Insoluble in water; soluble in most organic solvents including alcohols, ketones, esters, and hydrocarbons

Evaporation Rate: Very slow (negligible at room temperature)

3. Safety & Hazard Attributes

GHS Classification: Not classified as hazardous under normal conditions of use

Toxicity: Low acute toxicity; LD₅₀ oral rat > 3,000 mg/kg

Irritation: May cause mild eye and skin irritation

Flammability: Combustible liquid (but high flash point)

Environmental: Low aquatic toxicity

4. Storage & Handling Attributes