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Metals, alloys and elements

Fluorine

Also known as Fluorine-19, Fluor, bifluoriden

CAS 7782-41-4Formula F2Molar mass 38.00 g/molEC 231-954-8
GHS signal word: Danger. Pictograms: Oxidiser, Gas under pressure, Corrosive, Acute toxicity (severe) 18 suppliers listed
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Fluorine chemical structure, F2, CAS 7782-41-4
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Pale yellow, diatomic gas or liquid
Melting point
-219.7 °C
Boiling point
-188.1 °C
Density
1.5127 at -188.13 °C (liquid)
Solubility
Decomposes in water
HS code
280130
Category
Metals, alloys and elements
UN number
UN 1045
Illustrative photo, a gas cylinder on a trolley on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Fluorine?

Plain description, key identifiers and synonyms

Difluorine is a gas molecular entity and a diatomic fluorine.

Fluorine is a diatomic molecule of fluorine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
molecular fluorine
CAS number
7782-41-4 CAS number cross-checked
EC number
231-954-8
Molecular formula
F2
UNII
284SYP0193
InChIKey
PXGOKWXKJXAPGV-UHFFFAOYSA-N
InChI
InChI=1S/F2/c1-2
SMILES (canonical and isomeric)
FF

Synonyms

  • Fluorine-19
  • Fluor
  • bifluoriden
  • difluorine
  • fluoro
  • Fluorures acide
  • Saeure fluoride
  • Fluoruri acidi
  • molecular fluorine
  • Fluorine 19
  • RCRA waste number P056
  • Dietary Fluorine
  • Fluorine anion
  • 100g of Scrubber Alumina
  • Fluorine-elemental
  • RCRA waste no. P056
  • F Standard Solution
  • Fluorine, compressed
  • Pxgokwxkjxapgv-uhfffaoysa-
  • Coal - Fluorine (NIM-GBW11123)
  • Fluorine, compressed [UN1045] [Poison gas]

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

Appearance
Pale yellow, diatomic gas or liquidexp.
Odour
Sharp penetrating odorexp.
Melting point
-219.7 °Cexp.
Boiling point
-188.1 °Cexp.
Density
1.5127 at -188.13 °C (liquid)exp.
Autoignition temperature
Not flammableexp.
Solubility
Decomposes in waterexp.
Vapour pressure
5 × 10⁺⁶ mm Hg at 25 °C /Extrapaloted/exp.

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
38.00 g/molcalc.
Exact mass
37.9968 Dacalc.
LogP (octanol/water)
0.84calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
2calc.
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
GHS03: Oxidiser
Oxidiser
GHS04: Gas under pressure
Gas under pressure
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
044NFPA 704 rating

Hazard statements

  • H270May cause or intensify fire, oxidiser.
  • H314Causes severe skin burns and eye damage.
  • H330Fatal if inhaled.
Precautionary statements (20)
  • P220Keep away from clothing and other combustible materials.
  • P244Keep valves and fittings free from oil and grease.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory 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.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P363Wash contaminated clothing before reuse.
  • P370 + P376In case of fire: Stop leak if safe to do so.
  • P403Store in a well-ventilated place.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1045
Transport hazard class
2.3

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

Fluorine suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 18 suppliers
18 of 18 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

18 suppliers in 6 countries

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Fluorine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Fluorine is encountered during its production and use as a rocket propellant, in the manufacture of various fluorides and fluorocarbons, and in various organic and inorganic syntheses.

In manufacture of UF6 (uranium hexafluoride) for nuclear power generation, of SF6 (sulfur hexafluoride) for dielectrics, of fluorinating and metal fluoride compounds.

Production of metallic and other fluorides, production of fluorocarbons, active constituent of fluoridating compounds used in drinking water, toothpastes, etc.

Gaseous surface treatment agent (polyethylene bottles).

Industrial uses: Drier, Semiconductor and photovoltaic agent, Other.

Consumer uses: Other, Semiconductor and photovoltaic agent.

Use classes: Inorganic substances, Metals/Elements.

Functional uses

  • Flow promoter
  • Wetting agent (non-aqueous)

Pharmacology

Fluorine is an element with atomic symbol F, atomic number 9, and atomic weight 19.0.

How it is made

The only method for the production of fluorine, both in the laboratory and in industry, is the electrolysis of anhydrous hydrogen fluoride containing dissolved potassium fluoride to achieve sufficient conductivity. It is important to work in as anhydrous a medium as possible, to prevent the formation of oxygen, or oxygen fluoride, at the anode. In all cases, hydrogen is produced at the cathode and fluorine at the anode.

Electrolysis of molten anhydrous hydrofluoric acid-potassium fluoride melts with special copper-bearing carbon anodes, steel cathodes and containers, and Monel screens.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 009-001-00-0

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2801.30Exact HS code

Fluorine, bromine

World exports in 2024
$303M
+0.2% vs 2023, imports $283M
2019 to 2024
Top exporters
  1. Israel41.9%
  2. Jordan * partner reported15.1%
  3. Japan13.7%
Top importers
  1. China65.9%
  2. Singapore6.3%
  3. United Kingdom5.0%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Fluorine is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Fluorine, based on the data on this page

What is Fluorine?

Difluorine is a gas molecular entity and a diatomic fluorine.

What is the CAS number of Fluorine?

The CAS registry number of Fluorine is 7782-41-4.

What is the molecular formula and weight of Fluorine?

The molecular formula of Fluorine is F2 and its molar mass is 38.00 g/mol.

What is Fluorine used for?

Fluorine is encountered during its production and use as a rocket propellant, in the manufacture of various fluorides and fluorocarbons, and in various organic and inorganic syntheses.

Is Fluorine hazardous?

Fluorine carries the GHS signal word "Danger". Main hazards: may cause or intensify fire, oxidiser, causes severe skin burns and eye damage, fatal if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Fluorine?

Fluorine is usually classified under HS code 280130 (Fluorine, bromine). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Fluorine?

CompoundList lists 18 suppliers of Fluorine in China, United States, Germany, France and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Fluorine?

Suppliers quote Fluorine 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 Fluorine

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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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