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14052 Tantalum(V) fluoride, 99.9% (metals basis)

CAS-Nummer
7783-71-3
Synonyme
Tantalum pentafluoride

Stock No. Größe Preis ($) Menge Verfügbarkeit
14052-09 10g 130,00
14052-18 50g 530,00
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Tantalum(V) fluoride, 99.9% (metals basis)

MDL
MFCD00042542
EINECS
232-022-3

Chemische Eigenschaften

Formel
TaF5
Molmasse
275.94
Form
Powder
Schmelzpunkt
96.8°
Siedepunkt
229.5°
Dichte
4.74
Storage & Sensitivity
Moisture Sensitive. Store under Argon. Ambient temperatures.
Löslichkeit
Decomposes in water forming tantalum oxyfluoride. Soluble in conc. and fuming HNO{3}Soluble in carbon disulfide, carbon tetrachloride and chloroform. Slightly soluble in acetic acid and ethanol.

Anwendungen

Tantalum(V) fluoride is used as a Friedel-Crafts catalyst. It combines with hydrogen fluoride and acts as a catalyst for the alkylation of alkanes and alkenes as well as the protonation of aromatic compounds.

Bemerkungen

Moisture sensitive. Incompatible with strong oxidizing agents and strong bases.

Literaturverweise

Levason, W.; Light, M. E.; Reid, G.; Zhang, W. Soft diphosphine and diarsine complexes of niobium(V) and tantalum(V) fluorides: synthesis, properties, structures and comparisons with the corresponding chlorides. Dalton Trans. 2015, 43 (25), 9557-9566.

Song, M. Y.; Kwak, Y. J.; Lee, S. H.; Park, H. R. Hydriding and dehydriding rates of Mg, Mg-10TaF5, and Mg-10NbF5 prepared via reactive mechanical grinding. Met. Mater. Int. 2015, 21 (1), 208-212.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H302-H312-H332-H314-H318

Harmful if swallowed. Harmful in contact with skin. Harmful if inhaled. Causes severe skin burns and eye damage. Causes serious eye damage.

Sicherheitshinweise: P260u-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a

Do not breathe dusts or mists. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Merck
14,9055
Gefahrenklasse
8
Verpackungsgruppe
II
Harmonized Tariff Code
2826.19
TSCA
Yes
RTECS
WW5775000

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