1,2-Dichloropropene

  • 1,2-Dichloropropylene
Formula
C3H4Cl2
Structure
Description
Liquid.
Uses
Used in dichloropropane-dichloropropene mixture as a soil fumigant for control of nematodes affecting roots of plants.

Registry Numbers and Inventories.
CAS
563-54-2
EC Index Number
602-031-00-0
RTECS
UC8300000
RTECS class
Agricultural Chemical and Pesticide; Mutagen
UN (DOT)
2047
Beilstein/Gmelin
1719545
Beilstein Reference
3-01-00-00704
Swiss Giftliste 1
G-6810
Austrailia AICS
Listed

Properties.
Formula
C3H4Cl2
Formula mass
110.97
Melting point, °C
-109
Boiling point, °C
75
Vapor pressure, mmHg
91
Vapor density (air=1)
3.83
Critical temperature
269
Critical pressure
42.6
Density
1.1811 g/cm3 (20 C)
Solubility in water
Slightly soluble
Refractive index
1.448 (20 C)
Partition coefficient, pKow
2.04

Hazards and Protection.
Storage
Follow precautions for 1,3-dichloropropene: do not place or store 1,3-dichloropropene in containers made of aluminum, magnesium, or alloys of these metals. Handle as a flammable liquid. Store at in tightly closed containers in a cool place.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate clothing to prevent any reasonable probability of skin contact. Wear eye protection to prevent any possibility of eye contact.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Make no contact with the spilled material. Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.
Stability
Container may explode in heat of fire and runoff to sewer may be a fire or explosion hazard. Dichloropropenes are a vapor explosion hazard indoors, outdoors, or in sewers.
Incompatibilities
Oxidizing agents, aluminum, halogens, metal salts.
Decomposition
Oxides of carbon, hydrogen chloride.

Fire.
Fire fighting
Use powders, halons, carbon dioxide. Keep tanks and drums cool by spraying water. NFPA recommendations for 1,3-dichloropropene-use water spray, dry chemical, foam, or carbon dioxide. Water spray may not extinguish the fire but can disperse vapors, protect workers, or flush spills. DOT recommendations for dichloropropene-for small fires, dry chemicals, carbon dioxide, or foam. For large fires, use water spray, fog, or foam. Move container from fire area if it can be done without risk. Keep water out of containers. Cool containers exposed to a fire with water from the side until well after fire is out, and withdraw immediately if a rising sound is heard from the venting safety device or if the tank discolors.
Fire potential
Expect that all dichloropropenes are as flammable as 1,3-dichloropropenes. 1,3-Dichloropropene is quite flammable. Ignitable under almost all normal conditions. Flashback may occur along vapor trail. Vapor in an enclosed area may ignite.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
When heated to decomposition it emits toxic hydrogen chloride or phosgene fumes.

Health.
Poison_Class
3
Exposure effects
   Ingestion
May cause toxic effects.
   Inhalation
Ards has been reported after ingestion. Animals exposed to 2700 ppm developed severe lung injury.
   Skin
Necrosis and edema were present when the agent was confined to rabbit skin, but were much reduced when the product was allowed to evaporate.
   Eyes
Prompt washing decreased the degree of irritation. Nasal irritation also occurred at concentrations greater than 1000 ppm.

First aid
 
   Ingestion
Administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents. Monitor liver and kidney function. Elevations may not be seen for several days. Respiratory support may be indicated in significant exposures. Monitor for pulmonary edema. Hypotension: infuse 10 to 20 ml/kg isotonic fluid, place in trendelenburg position. If hypotension persists, administer dopamine (5 to 20 mcg/kg/min) or norepinephrine (0.1 To 0.2 Mcg/kg/min), titrate to desired response.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
UN number
2047
Response guide
Hazard class
3
Packing Group
II; III
 
USCG CHRIS Code
CLF
 
36 Halogenated hydrocarbons