2,2-Dichloropropane

  • Dimethyldichloromethane
  • Dichlorodimethylmethane
  • Propane, 2,2-dichloro-
  • R 270aa
Formula
C3H6Cl2
Structure
Description
Liquid.

Registry Numbers and Inventories.
CAS
594-20-7
EC (EINECS/ELINCS)
209-832-0
R 11 20
S 16 23 29 33
RTECS
TX9662500
RTECS class
Other
UN (DOT)
1993
Beilstein/Gmelin
1731150
Beilstein Reference
4-01-00-00196
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed

Properties.
Formula
C3H6Cl2
Formula mass
112.99
Melting point, °C
-35
Boiling point, °C
69
Vapor pressure, mmHg
132 (25 C)
Vapor density (air=1)
3.9
Density
1.0914 g/cm3 (20 C)
Solubility in water
Slightly soluble
Viscosity
0.071 cp (20 C)
Surface tension
23.62 g/s2 (20 C)
Refractive index
1.4148 (20 C)
Heat of vaporization
31.9 kJ/mol
Heat of combustion
-1900 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Ground and bond containers when transferring material. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition. A vapor suppressing foam may be used to reduce vapors.
Stability
Uncontrolled reaction with dimethylzinc is explosive. Based on the behavior of 1,2-dichloropropane, explosions or fires may be caused by contact with strong oxidizers or strong acids. An explosion hazard may occur if material enters confined spaces such as sewers.
Incompatibilities
Strong oxidizing agents, dimethylzinc
Decomposition
Hydrogen chloride, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
-5
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Extremely flammable liquid. Containers may explode in the heat of a fire. Extinguishing media: Use water spray to cool fire-exposed containers. Do NOT use straight streams of water. For large fires, use water spray, fog or regular foam. For small fires, use dry chemical, carbon dioxide, water spray or regular foam. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
Based on the 1,2-isomer, other dichloropropanes are probably quite flammable.
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
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
May cause irritation of the digestive tract.
   Inhalation
May cause respiratory tract irritation. May cause liver and kidney damage. May cause cardiac abnormalities. Inhalation of high concentrations may result in bronchospasm.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation. Vapors may cause eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1993
Response guide
Hazard class
3
Packing Group
I; II; III
 
USCG CHRIS Code
DPL
 
36 Halogenated hydrocarbons