Histry Chem

Knowledge

Material Safety Data Sheet (MSDS): Dodecanedioic Acid (DDDA)

Identification

Product Name: Dodecanedioic Acid
Synonyms: DDDA; 1,12-Dodecanedioic Acid; DDA
Chemical Formula: C12H22O4
CAS Number: 693-23-2
Intended Use: Used in nylon production, powder coatings, lubricants, adhesives, resins, and corrosion inhibitors
Manufacturer: [Manufacturer’s Name, Address, Contact Information]
Emergency Contact: [Emergency Telephone Number Provided by Manufacturer or National Poison Center]

Hazard Identification

GHS Classification: Eye Irritant (Category 2A), Skin Irritant (Category 2), Not classified as flammable or toxic for transport
Signal Word: Warning
Pictogram: Exclamation mark
Hazard Statements: Irritates eyes and skin, Inhalation of dust may irritate respiratory tract
Precautionary Statements: Avoid dust formation, Wear eye/skin protection, Do not breathe dust
Physical Hazards: None under normal use
Environmental Hazards: Not classified as hazardous to environment but accidental spills need control
Health Hazards: Causes local irritation to skin, eyes, and mucous membranes

Composition / Information on Ingredients

Chemical Name: Dodecanedioic Acid
Common Name: DDDA
Concentration: More than 99%
Impurities: Not expected to alter hazard
Other Components: May contain trace amounts of related dicarboxylic acids; typically under 1%
Molecular Weight: 230.30 g/mol

First Aid Measures

Inhalation: Remove exposed person to fresh air. Rinse mouth and nose. Seek attention if symptoms persist (cough, shortness of breath).
Skin Contact: Wash affected area with plenty of water and soap. Remove contaminated clothing, launder before reuse. Seek attention for persistent irritation.
Eye Contact: Hold eyelids open and rinse cautiously with water for several minutes. Seek medical help if irritation continues.
Ingestion: Rinse mouth thoroughly. Drink water to dilute in case of swallowing small amount. Call health professional for larger exposures. Do not induce vomiting.
Most Important Symptoms: Redness, burning sensation, itching, tearing
Advice for Medical Personnel: Symptomatic treatment, no known specific antidote

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Media: Direct water jet may spread powder instead of extinguishing flames
Hazardous Combustion Products: Carbon oxides (CO and CO2) under fire conditions; Acrolein or other irritant fumes under incomplete combustion
Specific Hazards: Dust may form explosive mixtures with air if finely dispersed
Protective Equipment for Firefighters: Full protective gear and self-contained breathing apparatus
Special Precautions: Cool nearby containers with water spray. Control runoff from firefighting to avoid environmental contamination.

Accidental Release Measures

Personal Precautions: Isolate area. Wear gloves, goggles, dust mask. Ventilate surroundings. Avoid contact and inhalation.
Environmental Precautions: Prevent entry into drains, sewers, or surface waters. Sweep up product. Do not flush with water.
Methods for Clean-up: Collect spillage using shovel or scoop into suitable container for proper disposal. Minimize dust generation. Wash spill area after removal with water.
Reference to Other Sections: Use protective measures described under exposure/personal protection and disposal guidance.

Handling and Storage

Safe Handling Tips: Use proper ventilation. Avoid creating dust clouds. Do not eat, drink, smoke near product. Wash thoroughly after handling. Handle with chemical-resistant gloves and safety goggles.
Storage Conditions: Store in tightly closed, labeled containers in a dry, well-ventilated area, protected from moisture and heat sources. Keep away from food and incompatible substances (strong oxidizers, strong bases).
Storage Stability: Stable under standard conditions for at least one year.
Incompatible Materials: Do not store with strong oxidizers, strong bases.

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established OSHA PEL, ACGIH TLV. General workplace dust limits apply (e.g., nuisance dust: 10 mg/m3 total, 3 mg/m3 respirable).
Engineering Controls: Provide local ventilation at transfer points, enclosed processes, and dust capture.
Personal Protective Equipment: Chemical-resistant gloves (nitrile or PVC), safety glasses or face shield, disposable dust mask or respirator (P2 or N95 type for dusty situations).
Other Protective Measures: Wash hands after handling, change contaminated clothing, eye-wash and safety shower in work area.
Environmental Controls: Follow best practices to avoid release to environment.

Physical and Chemical Properties

Appearance: White crystalline powder, sometimes needle-shaped
Odor: Almost odorless
pH (1% solution): 2.5–3.5
Melting Point: 124–126°C
Boiling Point: Decomposes before boiling
Flash Point: Not easily flammable; >160°C
Flammability: Not considered flammable under normal conditions
Vapor Pressure: Very low at room temperature
Specific Gravity: 1.19 (25°C)
Solubility: Sparingly soluble in water (<1 g/L at 20°C), readily soluble in alcohols, acetone, ether
Partition Coefficient (log Kow): Approx. 1.1
Autoignition Temperature: Not established
Decomposition Temperature: Above 170°C
Viscosity: Not applicable for solids

Stability and Reactivity

Chemical Stability: Remains stable under recommended storage and handling conditions
Possible Reactions: No hazardous reactions with normal chemicals. Avoid strong oxidizers and strong bases.
Conditions to Avoid: Excess heat, continued moisture, sources of ignition
Hazardous Decomposition Products: Thermal decomposition yields carbon monoxide, carbon dioxide, and possibly small amounts of organic acids
Polymerization: Not expected to undergo hazardous polymerization
Reactivity: Weak organic acid; reacts slowly with bases to form salts

Toxicological Information

Acute Toxicity: Low. Oral LD50 (rat): over 5000 mg/kg. Inhalation LC50: not determined, no significant findings in exposure studies beyond respiratory irritation from dust.
Skin Corrosion/Irritation: Mild to moderate irritation, especially after prolonged or repeated contact
Serious Eye Damage/Irritation: Causes transient, sometimes severe irritation
Respiratory Sensitization: No evidence of allergic sensitization in animal or human data
Skin Sensitization: No evidence of skin sensitizing effects
Chronic Effects: No evidence of carcinogenicity, mutagenicity, or reproductive toxicity in laboratory studies
Other Effects: Repeated exposure to dust may cause dryness, chapping, and respiratory tract irritation

Ecological Information

Ecotoxicity: Not classified as hazardous based on available data. Freshwater fish (LC50 >100 mg/L, 96 hours). Daphnia (EC50 >100 mg/L, 48 hours).
Persistence and Degradability: Readily biodegradable; more than 60% degradation in 28 days aerobic conditions
Bioaccumulation Potential: Low. Log Kow suggests little tendency to accumulate in aquatic organisms
Mobility in Soil: Mobile in soil due to water solubility, but will degrade rapidly
Other Environmental Information: Large spills may lower pH of water, impacting organisms temporarily; good wastewater treatment removes most residues

Disposal Considerations

Waste Treatment Methods: Dispose in accordance with local, state, and national regulations. Incinerate in chemical incinerator with afterburner and scrubber or landfill in approved facility.
Contaminated Packaging: Empty containers can be landfilled or recycled after cleaning. Do not reuse container for other purposes.
Safe Handling for Disposal: Avoid dust release, wear suitable protective clothing, ensure all disposal follows regulatory and environmental standards
Other Notes: Do not discharge into drains, surface water, or soil

Transport Information

UN Number: Not classified as dangerous for transport by road, rail, air, or sea (IMDG, ICAO/IATA, ADR/RID not applicable)
Proper Shipping Name: Dodecanedioic Acid
Transport Hazard Class: None
Packing Group: None
Labels: None required for packaging or shipment
Special Precautions: Protect from moisture, prevent bag breakage and dust release, forklifts or hand trucks permitted as normal industrial chemical
Environmental Hazards: Not classified as marine pollutant, but spills near drains still need care

Regulatory Information

OSHA: Not regulated as a hazardous chemical by OSHA Hazard Communication Standard
TSCA: Listed in US Toxic Substances Control Act Inventory
EINECS/ELINCS: Listed (EC No 211-746-3)
IECSC (China): Listed
DSL/NDSL (Canada): Listed
REACH (EU): Registered as a high volume chemical
SARA Title III: Not subject to reporting under SARA Title III Sections 302, 311/312, 313
California Proposition 65: Not listed as a hazardous chemical or reproductive toxicant
Other National Inventories: Included in Japan ENCS, Korea ECL, Australia AICS
Other Restrictions: No known international, federal, or state restrictions for typical industrial use