CAS No.1291-32-3,Bis(cyclopentadienyl)zirconium dichloride Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	1291-32-3
Name:	Bis(cyclopentadienyl)zirconium dichloride
Article Data:	152

Formula:	C₁₀H₁₀Cl₂Zr
Molecular Weight:	292.319
Synonyms:	Zirconium,dichlorodi-p-cyclopentadienyl- (8CI);Zirconium, dichlorodicyclopentadienyl- (7CI);Bis(cyclopentadienyl)dichlorozirconium;Bis(cyclopentadienyl)zirconium dichloride;Bis(cyclopentadienyl)zirconium(IV)dichloride;Bis(h5-cyclopentadienyl)dichlorozirconium;Dichlorobis(h5-cyclopentadienyl)zirconium;Dichlorobis(p-cyclopentadienyl)zirconium;Dichlorodi-p-cyclopentadienylzirconium;Dichlorodicyclopentadienylzirconium;Dichlorozirconocene;Dicyclopentadienyldichlorozirconium;Dicyclopentadienylzirconium dichloride;Eurecen 5034;NSC 93930;Zirconium dicyclopentadiene dichloride;Zirconocene,dichloride;
EINECS:	215-066-8
Density:	6.73g/cm3
Melting Point:	242-245 ºC(lit.)
Boiling Point:	41.5 ºC at 760 mmHg
Flash Point:	124-125 ºC/15mm
Solubility:	hydrolysis
Appearance:	white to light beige crystals or powder
Hazard Symbols:	Xi
Risk Codes:	36/37/38
Safety:	26-36
Transport Information:	UN 3261
PSA:	0.00000
LogP:	3.29540

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Consensus Reports

Reported in EPA TSCA Inventory.

Standards and Recommendations

OSHA PEL: TWA 5 mg(Zr)/m³; STEL 10 mg(Zr)/m³
ACGIH TLV: TWA 5 mg(Zr)/m³; STEL 10 mg(Zr)/m³; Not Classifiable as a Human Carcinogen

Specification

The Zirconocene dichloride, with the CAS registry number 1291-32-3, is also known as Bis(cyclopentadienyl)zirconium dichloride. It belongs to the product categories of Classes of Metal Compounds; Metallocenes; Titanocene, etc.; Transition Metal Compounds; Zr (Zirconium) Compounds; Catalyst; Metallocene. Its EINECS registry number is 215-066-8. This chemical's molecular formula is C₁₀H₁₀Cl₂Zr and molecular weight is 292.32. What's more, its systematic name is called Dichloro(cyclopenta-1,3-dien-1-yl)cyclopenta-2,4-dien-1-ylzirconium. It is a colourless diamagnetic solid that is somewhat stable in air.

Physical properties about Zirconocene dichloride are: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 2.

Preparation of Zirconocene dichloride: this chemical can be prepared from zirconium(IV) chloride-THF complex and sodium cyclopentadienide.

ZrCl₄(THF)₂ + 2 NaCp → Cp₂ZrCl₂ + 2 NaCl + 2 THF

Uses of Zirconocene dichloride: (1) it is used as rubber accelerator; (2) it is used to produce other chemicals. For example, it can react with lithium aluminium hydride to give Cp₂ZrHCl Schwartz's reagent. Since lithium aluminium hydride is a strong reductant, some over-reduction occurs to give the dihydrido complex, Cp₂ZrH₂; treatment of the product mixture converts it to Schwartz's reagent.

(C₅H₅)₂ZrCl₂ + 1/4 LiAlH₄ → (C₅H₅)₂ZrHCl + 1/4 "LiAlCl₄"

When you are dealing with this chemical, you should be very careful. This chemical is inflammation to the skin, eyes and respiratory system or other mucous membranes. Therefore, you should wear suitable protective clothing. And in case of contacting with eyes, you should rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: Cl[Zr](Cl)(C/1/C=C\C=C\1)C=2C\C=C/C=2
(2) InChI: InChI=1S/2C5H5.2ClH.Zr/c2*1-2-4-5-3-1;;;/h1-3H,4H2;1-5H;2*1H;/q;;;;+2/p-2
(3) InChIKey: LMKLOQOWEOYSSR-UHFFFAOYSA-L

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
rat	LD50	intraperitoneal	30mg/kg (30mg/kg)		Progress Report for Contract No. PH-43-64-886, Submitted to the National Cancer Institute by The Institute of Chemical Biology, University of San Francisco. Vol. PH43-64-886,

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