Zirconium tetrachloride

  • Zirconium chloride
Formula
ZrCl4
Structure
Description
White lustrous crystalline solid.
Uses
Friedel-crafts catalyst, component of ziegler-type catalysts in condensation of ethylene, starting material in synth of organic deriv of zirconium, such as alkoxides & zircocene.

Registry Numbers and Inventories.
CAS
10026-11-6
EC (EINECS/ELINCS)
233-058-2
R 14 22 34 37
S 26 36/37/39 45
RTECS
ZH7175000
RTECS class
Other
UN (DOT)
2503
Merck
12,10307
Beilstein/Gmelin
122787 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Cl4Zr
Formula mass
233.03
Melting point, °C
437
Boiling point, °C
3577
Vapor pressure, mmHg
1
Critical temperature
503.5
Critical pressure
56.3
Density
2.8 g/cm3
Solubility in water
Decomposes
Heat of vaporization
105.7 kJ/mol

Hazards and Protection.
Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from water.
Handling
Do not allow water to get into the container because of violent reaction. Minimize dust generation and accumulation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. Use with adequate ventilation. Discard contaminated shoes. Keep from contact with moist air and steam.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation. Do not expose spill to water.
Stability
Stable under normal temperatures and pressures. Liberates heat and hydrochloric acid on contact with water.
Incompatibilities
Acids, alcohols, amines, moisture.
Decomposition
Hydrogen chloride, chloride fumes.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Substance is noncombustible. May ignite or explode on contact with steam or moist air. Water hydrolyzes material liberating acidic gas which in contact with metal surfaces can generate flammable and/or explosive hydrogen gas. Extinguishing media: Use dry sand or earth to smother fire. DO NOT USE WATER!
Fire potential
Nonflammable. Noncombustible.
Hazards
Will not burn - sublimes above 626F (331C). May give off HCl fumes.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases. Reaction with water may generate much heat which will increase the concentration of fumes in the air.
Health
3
 
Flammability
0
 
 
Reactivity
2
 
 
Special
W

Health.
Exposure effects
Experimental animals exposed to massive doses have developed CNS depression. Two individuals administered 50 milligrams of zirconium malate intravenously developed vertigo. Small fractions of zirconium were absorbed in female rats by the oral route, and the metal seemed to concentrate in the ovaries and produce hypervascularization. <br>In mice, offspring of clams who received zirconium during pregnancy had long-lasting behavioral changes. <br>Zirconium is found in newborn rats. <br>In rats, zirconium appears in the breast milk.
   Ingestion
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May be harmful if swallowed.
   Inhalation
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Causes chemical burns to the respiratory tract.
   Skin
Causes skin burns.
   Eyes
Causes eye burns.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated 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. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Transport.
UN number
2503
Response guide
Hazard class
8
Packing Group
III
 
USCG CHRIS Code
ZCT
 
Std. Transport #
4932395