2-(Chloromethyl)-2-methyloxirane

  • b-Methylepichlorohydrin
  • 3-Chloro-1,2-epoxy-2-methylpropane
  • 1-Chloro-2,3-epoxy-2-methylpropane
  • Methepichlorohydrin
Formula
C4H7ClO
Structure
Description
Colorless liquid.

Registry Numbers and Inventories.
CAS
598-09-4
EC (EINECS/ELINCS)
209-916-7
R: 20/21/22 34
S: 26 36/37/39 45
Japan ENCS (MITI)
Listed

Properties.
Formula
C4H7ClO
Formula mass
106.55
Melting point, °C
-40
Boiling point, °C
122
Vapor pressure, mmHg
17.1
Critical temperature
322
Critical pressure
45.5
Density
1.1032 g/cm3 (20 C)
Solubility in water
Soluble
Refractive index
1.4340 (20 C)
Partition coefficient, pKow
0.75
Heat of vaporization
34.51 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container. Corrosives area.
Protection
Wear appropriate protective gloves and protective clothing to prevent skin exposure. Use chemical safety goggles.
Respirators
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Small spills/leaks
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.
Incompatibilities
Strong oxidizing agents, amines.
Decomposition
Hydrogen chloride, chlorine, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
25
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguish with foam, dry chemical powder or carbon dioxide.

Health.
Exposure effects
Causes burns of the eye, skin, gastrointestinal track and respiratory tract.

First aid
 
   Ingestion
Do not induce vomiting. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.