Potassium heptafluorotantalate - ≥99.7% , CAS No.16924-00-8

CAS: 16924-00-8 Cat. No.: P111330 Molecular Weight: 392.13 EC Number: 240-986-1 PubChem CID: 28146

GRADE & PURITY ≥99.7%

Synonyms

Potassium fluorotanatalate (K2TaF7) | MFCD00042369 | POTASSIUM FLUOROTANTALATE | Potassium heptafluorotantalate(V) | Potassium tantalum fluoride (K2TaF7) | Tantalate(2-), heptafluoro-, potassium (1:2) | AKOS025310279 | Potassium tantalum fluoride | Tantal

Storage

Room temperature,Argon charged,Desiccated,Cool

Shipped In

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Overview

Decomposes in water. Slightly soluble in HF
Used in the electrochemical synthesis of TaB2.

Specifications

Synonyms

Potassium fluorotanatalate (K2TaF7) | MFCD00042369 | POTASSIUM FLUOROTANTALATE | Potassium heptafluorotantalate(V) | Potassium tantalum fluoride (K2TaF7) | Tantalate(2-), heptafluoro-, potassium (1:2) | AKOS025310279 | Potassium tantalum fluoride | Tantal

Specifications & Purity

≥99.7%

Storage

Room temperature, Argon charged, Desiccated, Cool

Shipped In

FedEx DG Service

This product requires cold chain shipping. Ground and other economy services are not available.

Purity

≥99.7%

Names and Identifiers

• Canonical Smiles: F[Ta-2](F)(F)(F)(F)(F)F.[K+].[K+]
• IUPAC Name: dipotassium;heptafluorotantalum(2-)
• InChIKey: DPXAUKPQZOAHGF-UHFFFAOYSA-G
• INCHI: 1S/7FH.2K.Ta/h7*1H;;;/q;;;;;;;2*+1;+5/p-7
• Isomeric SMILES: F[Ta-2](F)(F)(F)(F)(F)F.[K+].[K+]
• PubChem CID: 28146
• UN Number: 3288
• Molecular Weight: 392.13

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Class Alkali metal salts
      • Subclass Alkali metal fluorides

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Class: Alkali metal salts
• Subclass: Alkali metal fluorides
• Intermediate Tree Nodes: Not available
• Direct Parent: Alkali metal fluorides
• Alternative Parents: Inorganic salts
• Molecular Framework: Not available
• Substituents: Alkali metal fluoride - Inorganic salt
• Description: This compound belongs to the class of inorganic compounds known as alkali metal fluorides. These are inorganic compounds in which the largest halogen atom is fluorine, and the heaviest metal atom is an alkali metal.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Decomposes in water. Slightly soluble in HF
• Molecular Weight: 392.133 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 8
• Rotatable Bond Count: 0
• Exact Mass: 391.864 Da
• Monoisotopic Mass: 391.864 Da
• Topological Polar Surface Area: 0.000 Ų
• Heavy Atom Count: 10
• Formal Charge: 0
• Complexity: 96.600
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 3

XLogP3

References

1. YongKwan Lee, HyunChul Kim, Namhun Kwon, JaeJin Sim, MiHye Lee, SoongJu Oh, SeokJun Seo, JaeHong Shin, Kyoungtae Park.  (2023)  Effects of reduction temperature and diluent content on the properties of high-purity tantalum powder prepared using the Hunter process.  INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,      [PMID:] [10.1016/j.ijrmhm.2023.106128]

2. Yiping Yu, Lingyun Lang, Zijun Zhang, Wei Li, Song Wang, Wenzhi Huang.  (2025)  Strong bonding of tantalum carbide coating with an embedded structure on graphite.  JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,  46  (5): (118053).  [PMID:] [10.1016/j.jeurceramsoc.2025.118053]