Material Safety Data Sheet for Dipropyl Sulfide

Identification

Product Name: Dipropyl Sulfide
Chemical Family: Organosulfur Compound
Molecular Formula: C6H14S
Molecular Weight: 118.24 g/mol
Synonyms: 1,3-Dipropyl Sulfide, n-Propyl Sulfide
CAS Number: 111-47-7
Recommended Use: Laboratory chemical, solvent, and raw material in organic synthesis
Manufacturer/Supplier: Refer to label or supplier
Emergency Contact: Refer to supplier emergency phone or CHEMTREC

Hazard Identification

Classification: Flammable liquid, Harmful if swallowed or inhaled, Causes skin and eye irritation
Signal Word: Warning
Hazard Statements: Highly flammable liquid and vapor; Harmful if inhaled or ingested; Can cause skin and eye irritation; May cause respiratory tract irritation
Pictograms: Flame, Exclamation mark
Precautionary Statements: Avoid breathing vapors, wash skin thoroughly after handling, wear protective gloves and eye/face protection, use in a well-ventilated place, keep container tightly closed away from sources of ignition

Composition / Information on Ingredients

Chemical Name: Dipropyl Sulfide
Concentration: >98% by weight
Impurities: Traces of propyl mercaptan or other organosulfur contaminants (<0.5%)
Other Additives: None reported
CAS Number: 111-47-7

First Aid Measures

Inhalation: Move to fresh air, maintain breathing, seek medical advice if symptoms persist or breathing is difficult
Skin Contact: Remove contaminated clothing, rinse skin with water for several minutes, wash with soap, get medical attention if irritation continues
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, get medical attention for persistent discomfort
Ingestion: Rinse mouth, do not induce vomiting, seek immediate medical attention, do not give anything by mouth to someone unconscious
Advice for Physicians: Treat symptomatically, monitor respiratory and cardiac function, watch for signs of chemical pneumonitis in severe cases

Fire-Fighting Measures

Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam, avoid water jets
Unsuitable Extinguishing Media: Straight water streams may spread the fire
Specific Hazards: Vapors may form explosive mixtures with air, combustion generates toxic gases including sulfur oxides and carbon monoxide
Protective Equipment for Firefighters: Self-contained breathing apparatus and chemical protective suit
Special Information: Cool containers with water spray to prevent explosion from heat, evacuate area if large fire occurs

Accidental Release Measures

Personal Precautions: Wear chemical-resistant gloves, eye protection, and suitable respirator, avoid breathing vapors, ventilate area
Environmental Precautions: Prevent spills from entering drains, soil, or waterways, alert local authority if large quantity released
Methods for Clean-Up: Use inert absorbent (sand, earth, vermiculite), put in suitable closed chemical waste container, clean contaminated area with detergent and water
Preventive Measures: Remove all ignition sources, control static discharge, avoid unprotected contact with liquid and vapor

Handling and Storage

Handling: Work in fume hood or well-ventilated area, keep away from heat, sparks, and open flames, ground/bond containers when transferring, do not eat, drink, or smoke while handling, wash hands thoroughly after handling
Storage: Store in cool, dry, well-ventilated place, keep tightly closed and away from incompatible substances such as oxidizers and acids, segregate from food and beverages, avoid storing in direct sunlight

Exposure Controls and Personal Protection

Exposure Limits: No established OSHA or ACGIH exposure limits, use caution due to potential irritancy
Engineering Controls: Use with adequate mechanical ventilation, fume hood recommended for large quantities, maintain eyewash station and safety shower nearby
Personal Respiratory Protection: NIOSH-approved organic vapor respirator if ventilation is inadequate
Eye Protection: Chemical safety goggles or face shield
Skin Protection: Gloves resistant to organic chemicals (nitrile, neoprene), chemical apron if splashing is likely
Hygiene Measures: Do not eat or smoke during use, wash hands and exposed skin after handling, launder contaminated clothing before reuse

Physical and Chemical Properties

Appearance: Colorless to pale yellow liquid
Odor: Strong, unpleasant, characteristic 'rotten cabbage' odor
Odor Threshold: Low, detectable at very low levels
pH: Not applicable (neat compound)
Melting Point/Freezing Point: -93°C
Boiling Point: 141-143°C
Flash Point: 32°C (closed cup)
Evaporation Rate: Moderate (compared to ether)
Flammability: Flammable liquid
Upper/Lower Flammability or Explosive Limits: 1.1%–6.8% (v/v) in air
Vapor Pressure: 13 mm Hg at 20°C
Vapor Density: 4.1 (air=1)
Relative Density: 0.844–0.848 g/cm³ at 20°C
Solubility: Insoluble in water, miscible with most organic solvents
Partition coefficient n-octanol/water (log Kow): 2.6 (estimated)
Auto-Ignition Temperature: 215°C
Decomposition Temperature: Not established
Viscosity: Not determined at standard conditions

Stability and Reactivity

Chemical Stability: Stable under standard storage and handling conditions
Reactivity: Highly flammable, reacts strongly with oxidizing agents
Hazardous Reactions: May react violently with chlorine, bromine, nitric acid, peroxides
Conditions to Avoid: Heat, open flames, sparks, static discharge, strong sunlight
Incompatible Materials: Strong oxidizing agents, acids
Hazardous Decomposition Products: Sulfur oxides, carbon oxides, toxic fumes at high temperatures

Toxicological Information

Acute Toxicity (Oral): LD₅₀ (rat, oral) 2200 mg/kg (literature value)
Acute Toxicity (Dermal): Data not available
Inhalation: Vapors can be irritating to eyes, nose, and throat, may cause headache, nausea, dizziness
Skin Corrosion/Irritation: Causes irritation, may cause redness or burning
Eye Damage/Irritation: Causes irritation and watering, possible redness
Sensitization: Not expected to cause allergic reaction
Mutagenicity/Carcinogenicity: No data indicating mutagenic or carcinogenic effects in humans
Repeated Exposure: Repeated contact may cause skin defatting and dermatitis
Other Effects: May cause central nervous system depression at very high concentrations in confined spaces

Ecological Information

Ecotoxicity: Harmful to aquatic organisms at high concentrations, data on fish LC₅₀ suggest moderate toxicity (EC50 > 10 mg/L)
Persistence and Degradability: Biodegradable in aerobic conditions, may persist under anaerobic or poorly ventilated environments
Bioaccumulative Potential: Moderate, log Kow of 2.6 suggests potential for bioaccumulation
Mobility in Soil: May volatilize from soil surface, low water solubility limits mobility in groundwater
Other Adverse Effects: Volatile organic compound (VOC), contributes to atmospheric pollution and ozone formation under certain conditions

Disposal Considerations

Waste Treatment Methods: Dispose as hazardous organic chemical waste according to local, regional, and national regulations, incinerate under controlled conditions to minimize release of sulfur oxides
Contaminated Packaging: Empty containers should be rinsed thoroughly and given to licensed waste management company for recycling or disposal
Special Precautions: Avoid disposal in drains, ensure waste is not handled without proper PPE and ventilation, never allow product or rinse water to reach surface waters

Transport Information

UN Number: UN2430
Proper Shipping Name: Dipropyl Sulfide
Transport Hazard Class: 3 (Flammable Liquids)
Packing Group: III
Transport Labels: Flammable liquid label required
Environmental Hazards: Not classified as a marine pollutant
Transport Precautions: Keep containers upright and secure during transport, avoid release to environment, transport only with compatible chemicals

Regulatory Information

OSHA Status: Hazardous chemical as defined by OSHA Hazard Communication Standard
SARA Title III: Not listed under Section 313
TSCA: Listed on United States TSCA Inventory
European Regulations: Listed in EINECS (203-887-2), subject to REACH registration
Canadian DSL: Listed
Other Regulations: State and local requirements may apply, ensure appropriate labeling and documentation for workplace and transport
Industrial Safety: Comply with workplace exposure limits and environmental release standards, provide training for workers handling this material