Dichloroacetaldehyde

  • Chloroaldehyde
  • alpha,alpha-Dichloroacetaldehyde
  • 2,2-Dichloroacetaldehyde
Formula
C2H2Cl2O
Structure
Description
Colorless liquid with a penetrating pungent odor.
Uses
Manufacture of insecticides.

Registry Numbers and Inventories.
CAS
79-02-7
EC (EINECS/ELINCS)
201-169-5
RTECS
AB2710000
RTECS class
Mutagen
Beilstein/Gmelin
1739030
Beilstein Reference
4-01-00-03140
Swiss Giftliste 1
G-4002
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C2H2Cl2O
Formula mass
112.94
Boiling point, °C
91
Vapor pressure, mmHg
56 (25 C)
Density
1.4113 g/cm3 (25 C)
Solubility in water
Slightly soluble
Refractive index
1.4625 (20 C)
Partition coefficient, pKow
1.23
Heat of vaporization
33.1 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
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
When working with this chemical, you should wear an impervious full-body suit equipped with an air line respirator or a self-contained breathing apparatus.
Respirators
When working with this chemical, wear a NIOSH-approved full face chemical cartridge respirator equipped with the appropriate organic vapor cartridges. If that is not available, a half face respirator similarly equipped plus airtight goggles can be substituted. However, please note that half face respirators provide a substantially lower level of protection than do full face respirators.
Small spills/leaks
If you spill this chemical, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with alcohol followed by washing with a strong soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Stability
No data.
Incompatibilities
Reacts with acids, oxidizers.

Fire.
Flash Point,°C
16
Upper exp. limit, %
29
Lower exp. limit, %
9
Fire fighting
This compound is not very flammable but any fire involving this compound may produce dangerous vapors. You should evacuate the area. All firefighters should wear full-body protective clothing and use self-contained breathing apparatuses. You should extinguish any fires involving this chemical with a dry chemical, carbon dioxide, foam, or halon extinguisher.
Fire potential
This compound is combustible.

Health.
Poison_Class
3
Exposure effects
   Ingestion
See inhalation.
   Inhalation
Symptoms of exposure to this compound include local irritation of eyes, nose, and mucous membranes.
   Skin
See inhalation.
   Eyes
See inhalation

First aid
 
   Ingestion
DO NOT INDUCE VOMITING. Volatile chemicals have a high risk of being aspirated into the victim's lungs during vomiting which increases the medical problems. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.