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Chlorides and other halides

Teflic acid

Also known as Pentafluoro(hydroxy)-lambda~6~-tellane

CAS 57458-27-2Formula HF5OTeMolar mass 239.60 g/molEC 633-471-1
GHS signal word: Danger. Pictograms: Corrosive
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Teflic acid chemical structure, HF5OTe, CAS 57458-27-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
57458-27-2
Formula
HF5OTe
Molar mass
239.60 g/mol
EC number
633-471-1
HS code
281290
Category
Chlorides and other halides

What is Teflic acid?

Plain description, key identifiers and synonyms

Teflic acid is a chemical substance with the molecular formula HF5OTe and a molar mass of 239.60 g/mol. Its CAS registry number is 57458-27-2.

Identifiers

Registry numbers, names and line notations, tap to copy

CAS number
57458-27-2 CAS number cross-checked
EC number
633-471-1
Molecular formula
HF5OTe
InChIKey
OAOSLENTGBMCNC-UHFFFAOYSA-N
InChI
InChI=1S/F5HOTe/c1-7(2,3,4,5)6/h6H
SMILES (canonical and isomeric)
O[Te](F)(F)(F)(F)F

Synonyms

  • Pentafluoro(hydroxy)-lambda~6~-tellane

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
239.60 g/molcalc.
Exact mass
241.901 Dacalc.
LogP (octanol/water)
1.16calc.
Topological polar surface area
20.23 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive

Hazard statements

  • H314Causes severe skin burns and eye damage.
  • H318Causes serious eye damage.
Precautionary statements (14)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P363Wash contaminated clothing before reuse.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Teflic acid suppliers

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Teflic acid price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Teflic acid is traded under.

HS 2812.90Indicative HS code

Halides and halide oxides of non-metals, other

World exports in 2024
$572M
+10.6% vs 2023, imports $388M
2019 to 2024
Top exporters
  1. South Korea28.3%
  2. China20.0%
  3. United States18.5%
Top importers
  1. South Korea16.4%
  2. Japan12.3%
  3. Singapore11.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Teflic acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Teflic acid, based on the data on this page

What is Teflic acid?

Teflic acid is a chemical substance with the molecular formula HF5OTe and a molar mass of 239.60 g/mol. Its CAS registry number is 57458-27-2.

What is the CAS number of Teflic acid?

The CAS registry number of Teflic acid is 57458-27-2.

What is the molecular formula and weight of Teflic acid?

The molecular formula of Teflic acid is HF5OTe and its molar mass is 239.60 g/mol.

Is Teflic acid hazardous?

Teflic acid carries the GHS signal word "Danger". Main hazards: causes severe skin burns and eye damage, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Teflic acid?

Teflic acid is usually classified under HS code 281290 (Halides and halide oxides of non-metals, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Teflic acid?

Post a free request on CompoundList and suppliers of Teflic acid will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Teflic acid?

Suppliers quote Teflic acid on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Teflic acid

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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