Teflic acid

Teflic acid
Structural formula
Space-filling model
Space-filling model
Names
IUPAC name
Pentafluoroorthotelluric acid
Other names
Teflic acid
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.161.534 Edit this at Wikidata
  • InChI=1S/F5HOTe/c1-7(2,3,4,5)6/h6H checkY
    Key: OAOSLENTGBMCNC-UHFFFAOYSA-N checkY
  • InChI=1/F5HOTe/c1-7(2,3,4,5)6/h6H
    Key: OAOSLENTGBMCNC-UHFFFAOYAO
  • F[Te](F)(F)(F)(F)O
Properties
HOTeF5
Molar mass 239.60 g·mol−1
Appearance colorless solid
Melting point 39.1 °C (102.4 °F; 312.2 K)
Boiling point 59.7 °C (139.5 °F; 332.8 K)
Acidity (pKa) 8.8 (in Ac2O)[1]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 corrosive, toxic
GHS labelling:
GHS05: Corrosive
Danger
H314
P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Teflic acid is a chemical compound with the formula HOTeF5. This strong acid is related to orthotelluric acid, Te(OH)6. Teflic acid has a slightly distorted octahedral molecular geometry.

  1. ^ Perrin, D. D., ed. (1982) [1969]. Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution. IUPAC Chemical Data (2nd ed.). Oxford: Pergamon (published 1984). Entry 220. ISBN 0-08-029214-3. LCCN 82-16524.