[(Chloromethoxy)methyl]benzene

  • Benzyl chloromethyl ether
  • Benzyloxymethyl chloride
  • Chloromethyl benzyl ether
Formula
C8H9ClO
Structure
Description
Yellow-green liquid.

Registry Numbers and Inventories.
CAS
3587-60-8
22 23 37/38 41 45 48
26 39 45 53
UN (DOT)
2810
Beilstein/Gmelin
1364034
Beilstein Reference
4-06-00-02252
New Zealand
Listed

Properties.
Formula
C8H9ClO
Formula mass
156.61
Melting point, °C
-15
Boiling point, °C
207
Vapor pressure, mmHg
0.33 (25 C)
Critical temperature
453
Critical pressure
33.79
Density
1.126 g/cm3 (20 C)
Solubility in water
2.7 g/L (25 C)
Refractive index
1.5264 (20 C)
Partition coefficient, pKow
2.32
Heat of vaporization
42.52

Hazards and Protection.
Storage
Store at 2 - 8 C. Keep container tightly closed.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Respirators
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator.
Small spills/leaks
Absorb on sand or vermiculite and place in closed containers for disposal. Ventilate area and wash spill site after material pickup is complete.
Stability
Material is moisture sensitive. Material contains a stabilizer.
Incompatibilities
Strong oxidizing agents, Strong bases, Iron and iron salts, Aluminum, Brass.

Fire.
Flash Point,°C
91
Fire fighting
Do not use water. Extinguish with carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Combustible liquid.
Hazards
Stabilized and unstabilized benzyl chloride will undergo a rapid, exothermic polymerization reaction above 100 C This reaction occurs at much lower temperatures when species of iron are present. The gases generated during rapid polymerization will result in rapid build-up of dangerous pressure in closed vessels. Emits toxic fumes under fire conditions. Water hydrolyzes material liberating acidic gas which in contact with metal surfaces can generate flammable and/or explosive hydrogen gas.
Health
3
 
Flammability
2
 
 
Reactivity
1
 

Health.
Exposure effects
Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting. Inhalation may result in spasm, inflammation and edema of the larynx and bronchi, chemical pneumonitis, and pulmonary edema. Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin. This product is or contains a component that has been reported to be probably carcinogenic based on its IARC, OSHA, ACGIH, NTP, or EPA classification.
   Ingestion
Harmful if swallowed.
   Inhalation
Material is irritating to mucous membranes and upper respiratory tract. Toxic if inhaled.
   Skin
Causes skin irritation. May be harmful if absorbed through the skin.
   Eyes
Causes severe eye irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.
UN number
2810
Response guide
Hazard class
6.1
Packing Group
III