Tungsten(IV) chloride

  • Tungsten tetrachloride
  • Tetrachlorotungsten
  • Tungstenyl tetrachloride
Formula
WCl4
Structure
Description
black hygroscopic powder
Uses
Used in the synthesis of new triply bonded ditungsten phosphine complexes.

Registry Numbers and Inventories.
CAS
13470-13-8
26 27 28 36/37/39 45
UN (DOT)
3260

Properties.
Formula
Cl4W
Formula mass
325.65

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place. Store under nitrogen.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing. Faceshield (8-inch minimum).
Respirators
Wear appropriate government approved respirator.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Air and moisture sensitive.
Incompatibilities
Alcohols.
Decomposition
Hydrogen chloride gas.

Fire.
Fire fighting
Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Corrosive. Emits toxic fumes under fire conditions.

Health.
Exposure effects
Harmful if swallowed, inhaled, or absorbed through skin. 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.

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
3260
Response guide
Hazard class
8
Packing Group
II