聚四氟乙烯

Description

PTFE Dispersion · CAS 25510-94-5 · C2F4. UNII OMW63Z518S. Boiling Point: -105.3 °F at 760 mmHg (NTP, 1992); Boiling Point: -75.9 °C; Boiling Point: -105.3 °F.

Identification

CAS Registry Number	25510-94-5
PubChem CID	8301
Molecular formula	C2F4
IUPAC name	1,1,2,2-tetrafluoroethene
UNII (FDA)	OMW63Z518S

Computed Descriptors

Molecular Weight	100.01
XLogP3	1.3
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	99.99361265
Monoisotopic Mass	99.99361265
Topological Polar Surface Area	0
Heavy Atom Count	6
Formal Charge	0

Physical & Chemical Properties

Boiling Point	-105.3 °F at 760 mmHg (NTP, 1992)
Boiling Point	-75.9 °C
Boiling Point	-105.3 °F
Boiling Point	-75.9 °C @760 [mm Hg]
Melting Point	-224.5 °F (NTP, 1992)
Melting Point	-131.15 °C
Melting Point	-131.2 °C
Melting Point	-224.5 °F
Solubility	In water, 1.59X10+2 mg/L at 25 °C
Density	1.519 g/cu cm at -76 °C

Physical description & handling notes

• Tetrafluoroethylene, stabilized appears as a colorless odorless gas. Easily ignited. Vapors are heavier than air. May asphyxiate by the displacement of air. May violently polymerize under prolonged exposure to fire or heat, violently rupturing the container. Under prolonged exposure to fire or heat the containers may rupture violently and rocket. Water insoluble.
• Gas Vapor; Liquid
• Colorless, odorless gas; [ACGIH]
• COLOURLESS ODOURLESS GAS.
• Colorless, odorless gas.
• Colorless gas

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
GHS notification summary	59.3% (481 / 811)

GHS Hazard Classification

GHS notification summary	59.3% (481 / 811)
Reported hazard statements	H350, H220 (30.7%), H280 (36.6%), H371 (32.2%), H231, H320, H351, H373

Documented Uses

• Used to produce polytetrafluoroethylene polymers (Teflon); [ACGIH]
• In prepn of propellants for food product aerosols
• MONOMER FOR POLYTETRAFLUOETHYLENE RESINS; CHEM INT FOR HEXAFLUOROPROPYLENE; COMONOMER FOR PERFLUOROALKOXY RESINS, FLUORINATED ETHYLENE-PROPYLENE RESINS, & ETHYLENE-TETRAFLUOROETHYLENE RESINS; TERMONOMER WITH VINYLIDENE FLUORIDE & HEXAFLUOROPROPYLENE
• Used as a copolymer with hexafluoropropylene to substitute for polytetrafluoroethylene
• It is used mainly for the production of fluoropolymers. It reacts with perfluoronitrosoalkanes to produce so-called nitroso rubbers. It is also used in the production of low molecular mass compounds and intermediates, for example, for the manufacture of iodoperfluoroalkanes.
• Principal industrial use of CF2:CF2 is for preparation of polytetrafluoroethylene (Teflon (R)) Resins and copolymers.

Synonyms

TETRAFLUOROETHYLENE; Tetrafluoroethene; Perfluoroethylene; Perfluoroethene; 116-14-3; Fluoroplast 4; 1,1,2,2-Tetrafluoroethylene; Ethene, tetrafluoro-; Ethylene, tetrafluoro-; Tetrafluoroethylene monomer; Tetrafluorethylene; OMW63Z518S; DTXSID6021325; CHEBI:38866; ethylene tetrafluoride; RefChem:6295

Frequently Asked Questions

What are the CAS number and molecular formula of PTFE Dispersion?

CAS 25510-94-5; molecular formula C2F4; molecular weight — g/mol.

What other names is PTFE Dispersion known by?

TETRAFLUOROETHYLENE, Tetrafluoroethene, Perfluoroethylene, Perfluoroethene, 116-14-3, Fluoroplast 4.

What is the regulatory status of PTFE Dispersion?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is PTFE Dispersion classified as hazardous?

59.3% of GHS notifications report no hazard classification (481 of 811).

What are the key physical properties of PTFE Dispersion?

Boiling Point: -105.3 °F at 760 mmHg (NTP, 1992); Boiling Point: -75.9 °C; Boiling Point: -105.3 °F; Boiling Point: -75.9 °C @760 [mm Hg].

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.