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Refrigerants and blowing agents

Vinylidene fluoride

Also known as 1,1-Difluoroethylene, 1,1-Difluoroethene, Vinylidene difluoride

CAS 75-38-7Formula C2H2F2Molar mass 64.03 g/molEC 200-867-7
GHS signal word: Danger. Pictograms: Flammable, Gas under pressure, Serious health hazard 12 suppliers listed
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Vinylidene fluoride chemical structure, C2H2F2, CAS 75-38-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless gas
Melting point
-144 °C
Boiling point
-85.7 °C
Density
Relative density (water = 1): 0.6
Flash point
Flammable gas
HS code
290359
Category
Refrigerants and blowing agents
UN number
UN 1959
Illustrative photo, industrial gas cylinders secured with a safety chain in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Vinylidene fluoride?

Plain description, key identifiers and synonyms

Vinylidene fluoride is an organofluorine compound and an olefinic compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1,1-difluoroethene
CAS number
75-38-7 CAS number cross-checked
EC number
200-867-7
Molecular formula
C2H2F2
UNII
3C1IX2905B
MDL number
MFCD00000448, MFCD00084470
INCI name
POLYVINYLIDENE DIFLUORIDE
InChIKey
BQCIDUSAKPWEOX-UHFFFAOYSA-N
InChI
InChI=1S/C2H2F2/c1-2(3)4/h1H2
SMILES (canonical and isomeric)
C=C(F)F

Synonyms

  • 1,1-Difluoroethylene
  • 1,1-Difluoroethene
  • Vinylidene difluoride
  • Ethene, 1,1-difluoro-
  • Ethylene, 1,1-difluoro-
  • Genetron 1132a
  • Halocarbon 1132A
  • Difluoro-1,1-ethylene
  • Dalvor
  • Dulite
  • Vidar
  • Ftoroplast 2
  • Fluorolon 2
  • Ftorlon 2
  • Foraflon 50
  • Kynar 51
  • VDF
  • Kynar 200
  • Kynar 202
  • Kynar 300
  • Kynar 301
  • Kynar 450
  • Kynar 460
  • Kynar 500
  • Kynar 821
Show all 38 synonyms
  • Kynar 901
  • VF 2
  • VW 12
  • TL 450
  • KF 1000
  • KF 1100
  • 1,1-Difluoroethylene or Refrigerant gas R 1132a
  • Poly(vinylidene fluoride) pound PVDF pound(c)
  • fluorovinylidene
  • Norflurane EP Impurity Jj
  • CH2=CF2
  • 1,1-Difluoro-ethenhomopolymer
  • FC 1132a

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
Colorless gasexp.
Odour
Nearly odorlessexp.
Melting point
-144 °Cexp.
Boiling point
-85.7 °Cexp.
Density
Relative density (water = 1): 0.6exp.
Flash point
Flammable gasexp.
Autoignition temperature
640 °Cexp.
Solubility
Slightly sol in water, sol in alcohol and etherexp.
Vapour pressure
Liquid molar volume = 0.055194 m³/kmol, Vapor pressure = 3 × 10⁺⁴ mm Hg at 25 C (calculated from experimentally derived coefficients)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
64.03 g/molcalc.
Exact mass
64.0125 Dacalc.
LogP (octanol/water)
1.4calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
4calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS04: Gas under pressure
Gas under pressure
GHS08: Serious health hazard
Serious health hazard
412NFPA 704 rating

Hazard statements

  • H220Extremely flammable gas.
  • H230May react explosively even in the absence of air.
  • H280Contains gas under pressure, may explode if heated.
  • H340May cause genetic defects.
  • H350May cause cancer.
Precautionary statements (12)
  • P203Obtain, read and follow all safety instructions before use.
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P222Do not allow contact with air.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P337If eye irritation persists:
  • P377Leaking gas fire: do not extinguish, unless leak can be stopped safely.
  • P381In case of leakage, eliminate all ignition sources.
  • P403Store in a well-ventilated place.
  • P405Store locked up.
  • P410 + P403Protect from sunlight. Store in a well-ventilated place.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1959
Transport hazard class
2.1

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

Vinylidene fluoride suppliers

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

All 12 suppliers
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Where suppliers are based

12 suppliers in 4 countries

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Vinylidene fluoride 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

Manufacture of polymers and copolymers, chemical intermediate.

Used for the mfg of poly(vinylidene fluoride) and for copolymerization with many fluorinated monomers. One commercially significant use is the mfg of high performance fluoroelastomers that include copolymers of 1,1-difluorothene with hexafluoropropylene (HFP) or chlorotrifluoroethylene (CTFE) and terpolymers with HFP and tetrafluoroethylene.

Industrial uses: Monomers.

Cosmetic ingredient, INCI name POLYVINYLIDENE DIFLUORIDE(binding, skin conditioning)

Functional uses

  • Binder
  • Processing aids not otherwise specified
  • Softener and conditioner
  • Surfactant (surface active agent)
  • Wetting agent (non-aqueous)

Cosmetic functions

  • Binding
  • Skin conditioning

How it is made

Currently, three basic methods are used for the commercial production: (1) dechlorination of 1,2-dichloro-1,1-difluoroethane in the gas phase and on a metal catalyst, (2) dechlorination of 1-chloro-1,1-difluoroethane, and (3) dehydrofluorination of 1,1,1-trifluoroethane.

Thermal elimination of HCl from 1-chloro-1,1-difluoroethane is the principal industrial route...dehydrohalogenation of 1-bromo-1,1-difluoroethane or 1,1,1-trifluoroethane, or dehalogenation of 1,2-dichloro-1,1-difluoroethane are alternative routes, it can also be continuously prepared by the pyrolysis of trifluoromethane in the presence of a catalyst and either methane or ethylene.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

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 Vinylidene fluoride is traded under.

HS 2903.59Indicative HS code

Unsaturated fluorinated derivatives of acyclic hydrocarbons, other

World exports in 2024
$339M
−5.1% vs 2023, imports $375M
2022 to 2024
Top exporters
  1. Japan33.8%
  2. China17.1%
  3. South Korea13.0%
Top importers
  1. Japan23.0%
  2. China18.3%
  3. United States13.0%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Vinylidene fluoride, based on the data on this page

What is Vinylidene fluoride?

Vinylidene fluoride is an organofluorine compound and an olefinic compound.

What is Vinylidene fluoride used for?

Manufacture of polymers and copolymers, chemical intermediate. Used for the mfg of poly(vinylidene fluoride) and for copolymerization with many fluorinated monomers.

Is Vinylidene fluoride hazardous?

Vinylidene fluoride carries the GHS signal word "Danger". Main hazards: extremely flammable gas, may react explosively even in the absence of air, contains gas under pressure, may explode if heated. This summary is not an SDS, always read the supplier safety data sheet.

Guides for buyers

Practical guides that help when you source, ship or handle Vinylidene fluoride

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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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