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POTASSIUM HEPTAFLUOROTANTALATE(V)

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POTASSIUM HEPTAFLUOROTANTALATE(V) Basic information

Product Name:
POTASSIUM HEPTAFLUOROTANTALATE(V)
Synonyms:
  • potassiumtantalumfluoride[k2taf7]
  • TANTALUM POTASSIUM FLUORIDE 99%
  • potassium flutantalate
  • POTASSIUM HEPTAFLUOROTANTALATE 99%
  • Patassium Heptafluorotantalate(V)
  • Nsc154396
  • Potassium fluorotantalate (K2taf7)
  • Tantalate(2-), heptafluoro-, dipotassium
CAS:
16924-00-8
MF:
F7K2Ta
MW:
392.13
EINECS:
240-986-1
Product Categories:
  • Metal and Ceramic Science
  • Potassium Salts
  • Salts
Mol File:
16924-00-8.mol
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POTASSIUM HEPTAFLUOROTANTALATE(V) Chemical Properties

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.
LogP
-1 at 20℃
CAS DataBase Reference
16924-00-8(CAS DataBase Reference)
EPA Substance Registry System
Tantalate(2-), heptafluoro-, dipotassium (16924-00-8)
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Safety Information

Hazard Codes 
T,Xi
Risk Statements 
23/25
Safety Statements 
45
RIDADR 
UN 3288 6.1/PG 3
WGK Germany 
1
RTECS 
TT1225000
Hazard Note 
Irritant
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
28269090
Hazardous Substances Data
16924-00-8(Hazardous Substances Data)
Toxicity
mouse,LD50,oral,110mg/kg (110mg/kg),BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLDBEHAVIORAL: MUSCLE WEAKNESSBEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY),"Novye Dannye Po Toksikologii Redkikh Metalov Ikh Soedinenii," New Data on the Toxicology of Rare Metals and Their Compounds, Izrael'son, Z.I., ed., Moscow, Izdatel'stvo "Meditsina," 196Vol. -, Pg. 115, 1967.

MSDS

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POTASSIUM HEPTAFLUOROTANTALATE(V) Usage And Synthesis

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.

Uses

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.

Uses

Intermediate in preparation of pure tantalum.

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.

POTASSIUM HEPTAFLUOROTANTALATE(V) Preparation Products And Raw materials

Preparation Products

Raw materials

POTASSIUM HEPTAFLUOROTANTALATE(V)Supplier

Meryer (Shanghai) Chemical Technology Co., Ltd.
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Energy Chemical
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