MSDS for 2-Ethylhexyl Thioglycolate

Identification

Product Name: 2-Ethylhexyl Thioglycolate
Chemical Formula: C8H18O2S
CAS Number: 7659-86-1
Recommended Use: Intermediate in chemical synthesis, stabilizer, processing aid in polymer production
Supplier Contact: Manufacturer or distributor information can usually be found via business correspondence or supply documents
Emergency Phone Number: Provided through local distributor or safety documentation
Synonyms: Octyl thioglycolate, 2-Ethylhexyl mercaptoacetate

Hazard Identification

GHS Classification: Acute toxicity (oral, dermal), Skin corrosion/irritation, Eye irritation, Specific target organ toxicity
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation
Precautionary Statements: Avoid breathing vapors or mists, wash thoroughly after handling, wear protective gloves and eye protection, do not eat, drink or smoke while handling
Health Hazards: Causes respiratory tract irritation, skin sensitization, and discomfort to eyes
Environment Hazards: May be toxic to aquatic life with long lasting effects

Composition / Information on Ingredients

Chemical Identity: 2-Ethylhexyl Thioglycolate
CAS Number: 7659-86-1
Concentration: ≥ 98% by weight
Impurities: Typically less than 2%, may include minor components from synthesis such as unreacted alcohols or acids
Other Components: No significant non-hazardous additives listed in standard grades

First Aid Measures

Inhalation: Remove person to fresh air, keep comfortable for breathing, seek medical advice if symptoms persist
Skin Contact: Immediately wash exposed skin with plenty of soap and water, remove contaminated clothing, seek medical attention if irritation continues or develops
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes, lift eyelids occasionally, seek medical attention promptly
Ingestion: Do not induce vomiting, rinse mouth with water, never give anything by mouth to an unconscious person, seek medical assistance
Most Important Symptoms: Burning sensation, redness, irritation, possible respiratory swelling or discomfort

Fire-Fighting Measures

Suitable Extinguishing Media: Use foam, dry chemicals, or carbon dioxide. Water spray can be effective for cooling containers but may spread liquid
Special Hazards: May produce irritating and toxic fumes including oxides of sulfur, carbon monoxide and dioxide during combustion
Firefighting Instructions: Wear full protective gear, including SCBA. Approach fire from upwind to avoid hazardous vapors
Explosion Data: Product is not classified as explosive, but vapors may form explosive mixtures with air under certain conditions
Thermal Decomposition: Produces sulfur oxides and other hazardous gases when heated strongly

Accidental Release Measures

Personal Precautions: Use personal protective equipment including chemical-resistant gloves, protective eyewear, respirators if necessary. Evacuate unnecessary personnel
Environmental Precautions: Prevent product from entering drains, watercourses, and soil. Collect spillage promptly
Methods for Cleanup: Absorb with sand, inert material, or non-combustible absorbents; collect and dispose in lined containers. Clean spill area thoroughly with water
Reference to Other Sections: Consider advice from handling and storage, exposure controls, and disposal sections to ensure safe cleanup and waste management

Handling and Storage

Handling: Use with adequate ventilation, avoid inhaling vapors, keep containers closed when not in use, avoid direct contact with skin and eyes, use mechanical handling to avoid spills. Wash hands after use
Storage: Store in tightly closed containers in a cool, dry, well-ventilated area. Keep away from heat, sparks, open flames, strong acids, oxidizing agents
Incompatible Materials: Keep away from strong oxidizers, peroxides, and acids which can trigger violent reactions. Avoid storage with food or animal feed products
Special Storage Conditions: Protect containers from physical damage, control temperature to prevent decomposition or pressure buildup

Exposure Controls and Personal Protection

Engineering Controls: Provide local exhaust and/or adequate general ventilation to minimize vapors. Process enclosures or fume hoods in case of large-scale use
Personal Protection: Wear chemical safety goggles, impervious gloves (such as nitrile or neoprene), long-sleeved clothing, respiratory protection if vapor generation is likely
Occupational Exposure Limits: No established threshold limit values, but minimize exposure according to best industrial hygiene practices
Environmental Controls: Prevent from contaminating surface waters and soil by proper disposal and scrupulous containment

Physical and Chemical Properties

Appearance: Clear, colorless to pale yellow liquid
Odor: Mild, sulfurous odor possible
Odor Threshold: Not available
pH: Not applicable (neat product)
Melting Point/Freezing Point: Below -20°C
Boiling Point: Range 238-240°C
Flash Point: Approximately 123°C (closed cup)
Evaporation Rate: Not determined
Flammability: Not readily flammable but vapor above flash point may ignite
Vapor Pressure: Low at room temperature
Relative Density: ~1.01 g/cm³ (25°C)
Solubility: Slightly soluble in water, miscible with many organic solvents
Partition Coefficient (n-octanol/water): Not determined
Decomposition Temperature: Not well established
Viscosity: Slightly viscous liquid at room temperature

Stability and Reactivity

Chemical Stability: Stable under recommended handling and storage. Volatile in presence of extreme heat or sunlight
Possibility of Hazardous Reactions: May react violently with strong oxidizers and acids. Forms toxic gases when decomposed
Conditions to Avoid: Prolonged exposure to elevated temperatures, open flames, or incompatible mixtures
Incompatible Materials: Avoid contact with oxidizing agents, strong acids, peroxides
Hazardous Decomposition Products: Sulfur oxides, carbon monoxide, carbon dioxide under severe heating or fire conditions

Toxicological Information

Acute Toxicity: Oral LD50 values in rats reported near 700 mg/kg. Harmful by ingestion
Skin Irritation: Causes irritation and possible allergic reactions in sensitive individuals
Eye Damage/Irritation: May produce very strong irritation, burning, and possible swelling
Respiratory Sensitization: Repeated exposure may cause respiratory tract irritation and discomfort
Chronic Health Effects: Long-term or repeated exposure has not been fully investigated but avoid chronic exposure to reduce risk of sensitization or other effects
Mutagenicity/Carcinogenicity: Not classified as carcinogenic or mutagenic according to standard references as of latest available data

Ecological Information

Acute Aquatic Toxicity: Toxic to aquatic organisms at certain concentrations. May cause long-term adverse effects
Persistence and Degradability: Not rapidly biodegradable. May persist in aquatic environments
Bioaccumulative Potential: Expected to have low potential based on molecular structure, no significant data available
Mobility in Soil: May move through soil and contaminate groundwater if large quantities released
Other Adverse Effects: Monitor effluent and discharge to minimize harm to waterways and wildlife

Disposal Considerations

Disposal of Product: Treat as hazardous waste; use appropriate agency or licensed waste disposal contractor. Do not discharge to sewer or environment
Container Disposal: Triple rinse empty containers before recycling or disposal. Follow all local and national legislation
Special Precautions: Avoid direct handling during disposal, utilize designated PPE and environmental controls. Document all disposal steps as required by regulation

Transport Information

UN Number: Not regulated as dangerous good under UN Model Regulations
Transport Hazard Class: Not classified in major hazard class for road, sea, or air
Packing Group: Not applicable
Environmental Hazards: Not a marine pollutant, but bulk spills must be controlled
Special Transport Precautions: Secure containers upright and protected from physical damage. Label all transport containers according to regulations where required

Regulatory Information

Status under TSCA: Listed on US Toxic Substances Control Act inventory
Status under EU REACH: Registered under REACH in relevant volume bands
Other International Regulations: Compliance needed with respective country-specific chemical inventories
OSHA Compliance: Considered hazardous chemical as defined by OSHA Hazard Communication Standard
Label Elements: Carry GHS-compliant labeling on all shipped and handled packaging, along with hazard and precautionary statements. Maintain full documentation for workplace safety audits