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218634

Sigma-Aldrich

Tantalum(V) chloride

99.8% trace metals basis

Synonym(s):

Tantalum pentachloride

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About This Item

Linear Formula:
TaCl5
CAS Number:
7721-01-9
Molecular Weight:
358.21
EC Number:
231-755-6
MDL number:
MFCD00011253
UNSPSC Code:
12352302
PubChem Substance ID:
24853075
NACRES:
NA.23

Quality Level

200

Assay

99.8% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: tantalum

impurities

≤2500.0 ppm Trace Metal Analysis

density

3.68 g/mL at 25 °C (lit.)

SMILES string

Cl[Ta](Cl)(Cl)(Cl)Cl

InChI

1S/5ClH.Ta/h5*1H;/q;;;;;+5/p-5

InChI key

OEIMLTQPLAGXMX-UHFFFAOYSA-I

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Application

Used to form mixed chloro-aryloxide compounds, such as [Ta(OC6H3-2,6-i-Pr2)2Cl3]2, which form pyridine or phosphine adducts with a distorted six-coordinate geometry. Also used as a starting material for new edge-bridged octahedral M6 cluster compounds such as CsErTa6Cl18, for which electron and stability studies were performed.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H314,H335

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

EUH014

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

218634-100G:
218634-BULK:
218634-5G:
218634-25G:
218634-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCR1245
MKCR1071
MKCR0134
MKCQ8925
MKCM7715

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Ogliaro, F. et al.
Inorganic Chemistry, 37, 6199-6199 (1998)
Janet R. Clark et al.
Inorganic chemistry, 36(17), 3623-3631 (1997-08-13)
The mixed chloro-aryloxide compounds [M(OC(6)H(3)Pr(i)(2)-2,6)(2)Cl(3)](2) (M = Nb (1a), Ta (1b); both structurally characterized) and [M(OC(6)H(3)Pr(i)(2)-2,6)(3)Cl(2)] (M = Nb (2a), Ta (2b)) react with pyridine (py) and PMe(2)Ph to produce a series of adducts cis-mer-[MCl(3)(OC(6)H(3)Pr(i)(2)-2,6)(2)(L)] (M, L: Nb, py (3a);

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