Propyl chloroformate

  • Propyl chlorocarbonate
  • Carbonochloridic acid, propyl ester
Formula
C3H7OCOCl
Structure
Description
A colorless liquid.
Uses
Reactive intermediate to polymerization initiators and other chemicals.

Registry Numbers and Inventories.
CAS
109-61-5
EC (EINECS/ELINCS)
203-687-7
EC Index Number
607-142-00-8
EC Class
Flammable; Toxic; Corrosive
RTECS
LQ6830000
RTECS class
Other
UN (DOT)
2740
Merck
12,8033
Beilstein/Gmelin
906817
Beilstein Reference
4-03-00-00024
Swiss Giftliste 1
G-8866
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C4H7ClO2
Formula mass
122.55
Boiling point, °C
105
Vapor pressure, mmHg
20
Vapor density (air=1)
4.2
Density
1.094 g/cm3 (15 C)
Solubility in water
Slowly decomposes
Refractive index
1.40137 (20 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
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Stability
No data.
Incompatibilities
May react vigorously or explosively

Fire.
Flash Point,°C
28
Fire fighting
Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Wear positive pressure breathing apparatus and special protective clothing. Isolate for 1/2 mile in all directions if tank car or truck is involved in fire.Small fires: dry chemical, carbon dioxide, water spray and foam. Move container from fire area if you can do so without risk. Dike fire control water for later disposal; do not scatter the material. Spray cooling water on containers that are exposed to flames until after fire is out. Withdraw immediately in case of rising sound from venting safety device or any discoloration of tank due to fire.
Fire potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Hazards
When heated to decomposition, it emits toxic fumes of chlorine containing compounds. Propyl chloroformate is a flammable/combustible material; it may be ignited by heat, sparks or flames. Vapors may travel to a source of ignition and flash back. Container may explode in heat or fire. Vapor explosion and poison hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Runoff from fire control or dilution water may cause pollution. Gradually decomposed by water and alcohol. Unstable, decomposes spontaneously to form hydrochloric acid and other products. Avoid moist air.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
1
Exposure effects
   Ingestion
Irritation or burns of the esophagus or gastrointestinal tract may occur following ingestion.
   Inhalation
Vapor inhalation can cause respiratory tract irritation, respiratory distress and, at high concentrations, rapid onset of noncardiogenic pulmonary edema.
   Skin
Direct contact with the liquid material may cause dermal irritation and burns.
   Eyes
See Inhalation.

First aid
 
   Ingestion
The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
2740
Response guide
Hazard class
6.1
PRTC
T
Packing Group
I
 
USCG CHRIS Code
PCG
 
Std. Transport #
4921756