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HomeProduct name listPOTASSIUM HEPTAFLUOROTANTALATE(V)

POTASSIUM HEPTAFLUOROTANTALATE(V)

  • CAS NO.:16924-00-8
  • Empirical Formula: F7K2Ta
  • Molecular Weight: 392.13
  • MDL number: MFCD00042369
  • EINECS: 240-986-1
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-10-17 17:11:49
POTASSIUM HEPTAFLUOROTANTALATE(V) Structural

What is POTASSIUM HEPTAFLUOROTANTALATE(V)?

Chemical properties

White, silky needles. Slightly soluble in cold water; quite soluble in hot water.

Chemical properties

Potassium heptafluorotantalate, K2TaF7, crystallizes in colorless, rhombic needles. It hydrolyzes in boiling water containing no excess of hydrofluoric acid. The solubility of potassium heptafluorotantalate in hydrofluoric acid decreases from 60 g/100 mL at 100 °C to 0.5 g/100 mL at room temperature. The different solubility characteristics of K2TaF7 and K2NbOF5 are the fundamental basis of the Marignac process.

The Uses of POTASSIUM HEPTAFLUOROTANTALATE(V)

Intermediate in preparation of pure tantalum.

The Uses of POTASSIUM HEPTAFLUOROTANTALATE(V)

It is an important raw material. Used in chemical research. Use as primary and secondary intermediate(Pharmaceutical Intermediates). Used in the production and preparation of tantalum powder.

Hazard

Toxic by inhalation.

Flammability and Explosibility

Non flammable

Safety Profile

Poison by ingestion and intraperitoneal routes. When heated to decomposition it emits toxic fumes of F- and K2O.

Properties of POTASSIUM HEPTAFLUOROTANTALATE(V)

Melting point: °Cd ec.)
Density  4.56 g/mL at 25 °C(lit.)
vapor pressure  0Pa at 20℃
form  Powder
Specific Gravity 4.56
color  colorless crystals, crystalline
Water Solubility  Decomposes in water. Slightly soluble in hydrogen fluoride.
CAS DataBase Reference 16924-00-8(CAS DataBase Reference)
EPA Substance Registry System Tantalate(2-), heptafluoro-, dipotassium (16924-00-8)

Safety information for POTASSIUM HEPTAFLUOROTANTALATE(V)

Signal word Warning
Pictogram(s)
ghs
Skull and Crossbones
Acute Toxicity
GHS06
GHS Hazard Statements H301:Acute toxicity,oral
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for POTASSIUM HEPTAFLUOROTANTALATE(V)

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