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Chemical Name: 1,2-Dichloropropene
Synonyms: Telone, Propylene dichloride
CAS Number: 542-75-6
Physical Appearance: Colorless to amber liquid, sharp odor
Common Use: Soil fumigant in agriculture, nematicide
Main Hazards: Toxic if inhaled, skin and respiratory irritant, flammable liquid and vapor, may cause central nervous system effects
Hazard Classes: Acute toxicity (oral, dermal, inhalation), skin and eye irritation, carcinogenic concerns in chronic exposure
Environmental Risks: Harmful to aquatic life, volatile and can migrate rapidly in soil and water environments
Active Ingredient: 1,2-Dichloropropene (greater than 90 percent by weight in commercial formulations)
Other Components: Stabilizers and inert additives, often proprietary
Isomer Content: Contains both cis- and trans- isomers
Inhalation: Remove to fresh air, monitor breathing, provide oxygen if necessary
Skin Contact: Immediately remove contaminated clothing, wash skin thoroughly with soap and water
Eye Contact: Rinse cautiously with water for several minutes, seek medical attention for pain or redness
Ingestion: Do not induce vomiting, give water only if victim is alert, seek medical assistance
Suitable Extinguishing Media: Carbon dioxide, dry chemical, foam, water spray
Special Hazards: Vapors may form explosive mixtures with air, combustion produces toxic gases (hydrogen chloride, phosgene)
Firefighter Protection: Use self-contained breathing apparatus and full protective gear
Personal Protection: Evacuate area, ventilate, wear chemical-resistant clothing and respirator
Environmental Protection: Prevent runoff into drains, soil, and waterways
Clean-up: Absorb with inert material (sand, earth), store in suitable, labeled containers for disposal, avoid sparks or open flames near spill
Handling: Work in well-ventilated areas, avoid breathing vapors, avoid contact with skin and eyes, keep containers closed when not in use
Storage: Store in tightly closed containers, cool and dry place, away from sources of ignition, segregate from incompatible chemicals
Incompatibilities: Oxidizing agents, strong bases, amines
Engineering Controls: Use local exhaust ventilation, closed process systems
Personal Protection: Chemical-resistant gloves and goggles, flame-resistant clothing, NIOSH-approved respirator for vapor
Exposure Limits: OSHA PEL: 1 ppm (8-hour TWA); ACGIH TLV: 1 ppm (skin)
Appearance: Clear, colorless to pale amber liquid
Odor: Sharp, sweet, chloroform-like
Boiling Point: Around 96-104 °C depending on isomer ratio
Melting Point: Below -100 °C
Vapor Pressure: High
Solubility in Water: Slight
Specific Gravity: About 1.2 (water = 1)
Flash Point: 28-35 °C (82-95 °F)
Flammability: Flammable liquid and vapor
Chemical Stability: Stable under recommended storage conditions
Reactivity: Can generate toxic gases with heat, reacts with strong bases, strong oxidizers, can decompose if heated
Hazardous Decomposition Products: Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide
Acute Toxicity: Harmful or fatal if inhaled or ingested, causes burns to skin and eyes
Long-Term Effects: Possible liver, kidney, and nerve damage, suspected human carcinogen (IARC Group 2B)
Symptoms of Overexposure: Dizziness, headache, nausea, skin irritation, eye burns, respiratory distress
Sensitization: Can cause allergic skin reactions
Toxicity to Aquatic Life: Harmful, persistent residues can impact aquatic invertebrates and fish
Environmental Fate: Volatile, subject to atmospheric breakdown, can persist in groundwater
Mobility: Moves readily through soil into water bodies, risk of local and regional contamination
Waste Handling: Incinerate at approved facilities, never pour into drains, avoid open burning
Container Disposal: Rinse thoroughly, crush or puncture, dispose according to hazardous waste regulations
Legal Requirements: Follow state and federal laws for pesticide and chemical disposal
UN Number: 2047
Proper Shipping Name: 1,2-Dichloropropene
Transport Hazard Class: 3 (Flammable liquids)
Packing Group: III
Labeling Requirements: Flammable liquid, toxic substance
OSHA Classification: Hazardous chemical under the OSHA Hazard Communication Standard
EPA Status: Registered pesticide under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
TSCA Inventory: Listed
State Regulations: Listed under California Proposition 65 as a cancer risk; subject to reporting under SARA Title III
