Suyuan Chemical
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Material Safety Data Sheet: Dimethyloctyl Tertiary Amine

Identification

Product Name: Dimethyloctyl Tertiary Amine
Chemical Name: N,N-Dimethyloctan-1-amine
Synonyms: Octyl dimethylamine
CAS Number: 1116-76-3
Recommended Use: Chemical intermediate, flotation reagent, corrosion inhibitor
Manufacturer Information: Refer to supplier or manufacturer information for emergency contact details and address
Emergency Phone Number: Refer to local emergency response

Hazard Identification

Classification: Flammable liquid (Category 3), Acute toxicity (Category 4, Oral), Skin irritation (Category 2), Eye irritation (Category 2)
Signal Word: Warning
Hazard Statements: May cause skin and eye irritation; harmful if swallowed; vapors can form explosive mixtures in air
Pictograms: Flame, Exclamation mark
Precautionary Statements: Avoid breathing vapors, wash hands thoroughly after handling, wear protective gloves and eye/face protection, keep container tightly closed and away from heat/sparks/open flame
Routes of Entry: Inhalation, skin contact, ingestion, eye contact
Target Organs: Skin, eyes, respiratory system
Other Hazards: May release toxic fumes under fire conditions

Composition / Information on Ingredients

Chemical Identity: Dimethyloctyl Tertiary Amine
CAS Number: 1116-76-3
Concentration: ≥ 95%
Impurities: None known that contribute to hazard classification
Molecular Formula: C10H23N
Molecular Weight: 157.30 g/mol
Other Components: Trace byproducts from synthesis possible, check batch analysis

First Aid Measures

Inhalation: Move affected person to fresh air promptly, keep comfortable for breathing, administer oxygen if symptoms develop, seek medical care if symptoms persist
Skin Contact: Remove contaminated clothing, wash exposed skin with plenty of soap and water, seek medical attention if irritation or redness continues
Eye Contact: Rinse eyes thoroughly for at least 15 minutes with water, make sure to lift upper and lower eyelids, visit a physician if irritation does not subside
Ingestion: Rinse mouth with water, do not induce vomiting, seek immediate medical advice, give water to drink only if the person is conscious
Most Important Symptoms: Burning sensation, coughing, redness, pain, headache, nausea
Immediate Medical Attention Required: Prolonged exposure or persistent symptoms demand professional evaluation

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, alcohol-resistant foam, water spray
Hazards from Combustion Products: Releases nitrogen oxides, carbon oxides; toxic and irritating vapors possible
Special Protective Equipment for Firefighters: Full protective gear, self-contained breathing apparatus
Fire Fighting Instructions: Approach from upwind, use water spray to cool exposed containers, prevent runoff from entering drains or water sources
Explosion Risk: Vapors form explosive mixtures with air; containers may rupture under intense heat; static discharge can ignite vapors

Accidental Release Measures

Personal Precautions: Evacuate nonessential persons, ventilate area, wear chemical-resistant gloves, safety goggles, respiratory protection as needed
Environmental Precautions: Prevent entry into drains, sewers, or waterways; alert local authorities if significant spillage reaches natural environments
Methods for Cleanup: Contain spilled liquid using inert absorbent (sand, earth, vermiculite), collect material in a suitable container for disposal, clean residue from area using appropriate cleaner
Spill Response: Avoid contact with skin and eyes, stop leak if safe, wear PPE, prevent further leakage, local exhaust recommended for vapors

Handling and Storage

Handling: Work in well-ventilated surroundings, avoid contact with skin and eyes, keep away from ignition sources, wear protective equipment; transfer using grounded containers and proper bonding
Storage: Keep containers tightly closed in a cool, dry, and well-ventilated area, store away from incompatible substances like strong oxidizers and acids, protect from direct sunlight, separate from food and feed
Storage Temperature: Maintain ambient temperature unless otherwise specified; avoid freezing or high heat
Incompatibilities: Oxygen, strong acids, oxidizing agents
Specific Requirements: Secure location away from children, authorized personnel only, label storage clearly

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established regulatory limits, minimize exposure with good engineering controls
Engineering Controls: Use local exhaust ventilation, keep air contaminants below exposure limits, maintain eyewash stations and emergency showers nearby
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene, PVC), safety goggles or face shield, laboratory coats or aprons, closed footwear, respirator with organic vapor cartridge for insufficient ventilation
Hygiene Practices: Wash hands thoroughly after handling, do not eat or drink in work areas, remove contaminated clothing before leaving the workplace

Physical and Chemical Properties

Appearance: Clear, colorless to pale yellow liquid
Odor: Amine-like, mildly fishy
Odor Threshold: Not determined
pH: Not available (aqueous solution may be alkaline)
Melting Point/Freezing Point: -15°C
Boiling Point/Range: 194 – 196°C
Flash Point: 74°C (closed cup)
Evaporation Rate: Not available
Flammability: Flammable liquid
Upper/Lower Flammability or Explosive Limits: Not available
Vapor Pressure: 0.3 mmHg at 25°C
Vapor Density: Heavier than air
Relative Density: 0.78 – 0.82 g/cm³
Solubility: Slightly soluble in water, soluble in alcohols, ethers, organic solvents
Partition Coefficient (n-octanol/water): Expected log Kow >3
Auto-Ignition Temperature: 210°C
Decomposition Temperature: Not determined
Viscosity: Not measured

Stability and Reactivity

Chemical Stability: Stable under recommended handling and storage conditions
Reactive With: Strong oxidizers, strong acids, halogens
Hazardous Reactions: Possibility of hazardous polymerization is low, can release toxic and corrosive gases if mixed with incompatible substances
Hazardous Decomposition: Ammonia, nitrogen oxides, carbon monoxide, carbon dioxide
Conditions to Avoid: Heat, flames, sparks, static discharge, contact with incompatible chemicals
Inertness: Not inert; follow all precautions when handling

Toxicological Information

Acute Toxicity: Oral LD50 (rat) estimated at 300-2000 mg/kg, skin and inhalation toxicity not fully established
Skin Contact: Causes irritation, redness, defatting
Eye Contact: Produces irritation, tearing, possible corneal injury if not washed out promptly
Inhalation: May lead to respiratory irritation, coughing, headache, drowsiness if exposed to high vapor concentrations
Chronic Effects: Prolonged or repeated contact can cause dermatitis, redness and dryness
Carcinogenicity: Not classified as carcinogen by IARC, NTP or OSHA
Mutagenicity: Information not available
Reproductive Toxicity: Information not available
Sensitization: Not expected, though sensitive individuals may react
Other Information: Data gaps remain; handle with caution due to potential health effects

Ecological Information

Aquatic Toxicity: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Not readily biodegradable; tends to persist due to its hydrocarbon chain
Bioaccumulative Potential: High potential based on chemical structure and partition coefficient
Mobility in Soil: Expected moderate to low, adsorbs to soils and sediments
Other Environmental Hazards: Avoid release to the environment, long-term environmental damage possible without remedial action
Environmental Precautions: Do not discharge into drains, surface or groundwater; inform authorities if significant release occurs

Disposal Considerations

Waste Treatment Methods: Dispose of according to federal, state, and local regulations, incinerate in a chemical incinerator with afterburner and scrubber recommended
Container Handling: Empty containers contain residue; observe all precautions; do not reuse—triple rinse and puncture before disposal
Environmental Precautions: Minimize exposure to environment, ensure waste cannot leach into soils or waterways
Recommended Disposal: Transfer to licensed waste disposal contractor, treat as hazardous waste
Unclean Packaging: Handle as hazardous material, use approved waste facilities
Contaminated Waste: Do not allow entry into ground or water systems

Transport Information

UN Number: 2734
UN Proper Shipping Name: Amines, liquid, corrosive, flammable, n.o.s. (contains Dimethyloctyl Tertiary Amine)
Transport Hazard Class: 3 (Flammable liquid); 8 (Corrosive)
Packing Group: II
Marine Pollutant: Yes
Environmental Hazards: Dangerous goods for transport; avoid spill to water
Special Precautions for User: Follow ADR, IMDG, IATA regulations during all modes of transportation
Labeling: Flammable liquid, Corrosive

Regulatory Information

OSHA: Considered hazardous under OSHA Hazard Communication Standard
SARA Title III: Not listed as an extremely hazardous substance;
TSCA: Listed on US Toxic Substances Control Act Inventory
REACH: Registered in accordance with European Union regulation where required
DSL/NDSL: Listed
Other Regulations: Consult local, state, national or international regulations for specific restrictions or guidance
Hazard Symbols: F (Flammable), Xi (Irritant); additional pictograms for corrosive and aquatic toxicity in some jurisdictions
Safety Assessment: Review workplace safety plan; provide workers with training and PPE