1-Chloro-2-methyl-1-propene

  • 2-Methyl-1-propenyl chloride
  • Isocrotyl chloride
  • alpha-Chloroisobutylene
Formula
CH3C(CH3)=CHCl
Structure
Description
Clear dark yellow to pale orange liquid.
Uses
In organic syntheses.

Registry Numbers and Inventories.
CAS
513-37-1
EC (EINECS/ELINCS)
208-158-4
EC Class
highly flammable, irritant
R 11 36/37/38
S 9 16 29 33
RTECS
UC8045000
RTECS class
Tumorigen; Mutagen
UN (DOT)
2554
Merck
12,2199
Beilstein/Gmelin
1733843
Beilstein Reference
4-01-00-00803
Swiss Giftliste 1
G-8630
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C4H7Cl
Formula mass
90.55
Boiling point, °C
68
Vapor pressure, mmHg
158
Density
0.9416 g/cm3 (0 C)
Solubility in water
1-5 mg/ml
Refractive index
1.4212 (19 C)

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
If Tyvek-type disposable protective clothing is not worn during handling of this chemical, wear disposable Tyvek-type sleeves taped to your gloves.
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, FIRST REMOVE ALL SOURCES OF IGNITION. Then, 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 60-70% ethanol followed by washing with a 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.
Disposal code
2
Stability
Polymerizes easily.
Incompatibilities
Incompatible with strong oxidizing agents and strong bases.
Decomposition
When heated to decomposition temperature unspecified , dimethylvinyl chloride emits highly toxic fumes of hydrochloric acid and other chlorinated compounds. When heated to decomposition emits highly toxic fumes of hydrogen chloride.

Fire.
Flash Point,°C
-22
Autoignition, °C
555
Fire fighting
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher.
Fire potential
This chemical is 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 limit(s)
OEL-RUSSIA:STEL 0.3 mg/m3;Skin
Carcinogin
I-2B, N-2, CP65
Poison_Class
2
Exposure effects
Very high concentrations are depressant in animals.
   Inhalation
At high concentrations the vapors are irritating to the respiratory tract.
   Skin
May cause irritation or burns.
   Eyes
CONJUNCTIVITIS - This chemical is moderately irritating to the eyes but is not expected to cause serious or permanent injury.

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. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. 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. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
   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.
UN number
2554
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
CLF
 
36 Halogenated hydrocarbons
HS Code
2903 29 00