*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : MG4815000
CHEMICAL NAME           : Hafnium, dichlorodi-pi-cyclopentadienyl-
CAS REGISTRY NUMBER     : 12116-66-4
LAST UPDATED            : 199701
DATA ITEMS CITED        : 2
MOLECULAR FORMULA       : C10-H10-Cl2-Hf
MOLECULAR WEIGHT        : 379.59
WISWESSER LINE NOTATION : L50J 0-HF-GG- 0L50J
COMPOUND DESCRIPTOR     : Organometallic
SYNONYMS/TRADE NAMES :
   * Dichlorobis(eta-cyclopentadienyl)hafnium
   * Dichlorodicyclopentadienylhafnium
   * Dichlorodi-pi-cyclopentadienylhafnium
   * Dicyclopentadienylhafnium dichloride
   * Hafnium, dichlorobis(eta(5)-2,4-cyclopentadien-1-yl)-
   * Hafnium dicyclopentadiene dichloride
   * Hafnocene dichloride
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 100 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems
   Laboratory, NIOSH Exchange Chemicals.  (Aberdeen Proving Ground, MD 21010)
   Volume(issue)/page/year: NX#04787

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY

 
                            *** END OF RECORD ***