poly(tetrafluoroethylene)
Product Information
Molecular Formula
(C2F4)n
Molecular Weight
100.015612
Description
PTFE is generally referred to as "non-stick coating"/"easy-cleaning material"; it is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material has the characteristics of acid and alkali resistance, resistance to various organic solvents, and is almost insoluble in all solvents.
Synonyms
TETRAFLUOROETHYLENE OLIGOMER; TETRAFLUOROETHYLENE RESIN; TEFLON; TEFLON 7A; TEFLON(TM) 30B; TEFLON(TM) 6; TEFLON(TM) 7A; POLYTETRAFLUOROETHYLENE
IUPAC Name
1,1,2,2-tetrafluoroethene
SMILES
C(=C(F)F)(F)F
InChI
InChI=1S/C2F4/c3-1(4)2(5)6
InChI Key
BFKJFAAPBSQJPD-UHFFFAOYSA-N
Boiling Point
-105.3 °F at 760 mm Hg (NTP, 1992);-75.9 °C;-19.9 °C;-75.9 °C;-75.9 °C;-105.3°F
Melting Point
327°C
Flash Point
> 93.3°C (> 200°F)
Density
2
Solubility
Insoluble (NTP, 1992);0.00 M;No substance has been found which will dissolve the polymer at moderate temperatures;In water, 1.59X10+2 mg/L at 25 °C;Solubility in water, mg/l at 25 °C: 159 (very slightly soluble)
Appearance
Colourless gas
Application
PTFE is widely used in various occasions where resistance to acid, alkali and organic solvents is required, and is used to make non-stick pans and dry-type transformers. Teflon has a soft texture, so it is often used for coatings. When it was first developed, its main application area was the inner wall coating of high-temperature launch rockets. PTFE is also the main component of the green tape.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Refractive Index
1.35
Stability
Stable - unreactive with most materials. Incompatible with molten alkali metals, fluorine and other halogens, strong oxidizing agents.
LogP
log Kow = 1.21 (est);1.21 (estimated)
Vapor Pressure
22800 mm Hg at 70 °F (NTP, 1992);2.45e+04 mmHg;2.45X10+4 mm Hg at 25 °C /extrapolated/;Vapor pressure, kPa at 20 °C: 2947;22800 mmHg at 70°F
Henry's Law Constant
0.629 atm-cu m/mol at 25 °C (est)
Odor
Odorless
Safety Information
Handling
Eyeshields, Gloves, type N95 (US)
| Melting Point | Density | Description |
|---|---|---|
| 321 °C | 2.15 g/mL at 25 °C | Powder (free-flowing), 1 μm particle size |
| 2 g/mL at 25 °C | Powder, >40 μm particle size | |
| 321 °C | 2.1 g/mL at 25 °C | Powder, 35 μm particle size |
| 321 °C | 2.15 g/mL at 25 °C | Powder (free-flowing), ≤12 μm particle size |
| Beads | ||
| 340-345 °C | Powder, 200 μm particle size | |
| 330-334 °C | Powder, ≥350 μm particle size |
Computed Properties
XLogP3
1.3
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
4
Rotatable Bond Count
0
Exact Mass
99.99361265 g/mol
Monoisotopic Mass
99.99361265 g/mol
Topological Polar Surface Area
0Ų
Heavy Atom Count
6
Formal Charge
0
Complexity
55.6
Isotope Atom Count
0
Defined Atom Stereocenter Count
0
Undefined Atom Stereocenter Count
0
Defined Bond Stereocenter Count
0
Undefined Bond Stereocenter Count
0
Covalently-Bonded Unit Count
1
Compound Is Canonicalized
Yes
Patents
| Publication Number | Title | Priority Date |
|---|---|---|
| US-2015259281-A1 | Process for the synthesis of tetrafluoroethanesulfonic acid | 2012-07-30 |
| US-9376379-B2 | Process for the synthesis of tetrafluoroethanesulfonic acid | 2012-07-30 |
| US-2015021261-A1 | Porous polymer membrane | 2011-12-28 |
| US-2013149540-A1 | Electrophotographic member, intermediate transfer member, image forming apparatus, and method for manufacturing electrophotographic member | 2011-12-12 |
| US-2012313043-A1 | Compound, liquid crystal composition and liquid crystal display device | 2011-06-13 |
| US-8592008-B2 | Compound, liquid crystal composition and liquid crystal display device | 2011-06-13 |
| US-2011309300-A1 | Compound having a five-membered ring, the liquid crystal composition and the liquid crystal display device | 2010-06-18 |
| US-2011240918-A1 | Optically active compound having polymerizable group and its polymer | 2010-04-02 |
| US-2011195340-A1 | Composition, polymer thereof, electrode and electrolyte membrane for fuel cell, and fuel cell including the same | 2010-02-05 |
| US-2011147657-A1 | Polymerizable liquid crystal compound, polymerizable liquid crystal composition and anisotropic polymer | 2009-12-22 |
Literatures
| PMID | Publication Date | Title | Journal |
|---|---|---|---|
| 22378610 | 2012-04-10 | Facile carbon-fluorine bond activation and subsequent functionalisation of 1,1-difluoroethylene and tetrafluoroethylene promoted by adjacent metal centres | Chemistry (Weinheim an der Bergstrasse, Germany) |
| 22322341 | 2012-03-01 | Exposure assessment of tetrafluoroethylene and ammonium perfluorooctanoate 1951-2002 | Journal of environmental monitoring : JEM |
| 22232223 | 2012-01-01 | Influence of inhalation anesthetics on ion transport across a planar bilayer lipid membrane | Analytical sciences : the international journal of the Japan Society for Analytical Chemistry |
| 22368468 | 2012-01-01 | Rapid classification of hairtail fish and pork freshness using an electronic nose based on the PCA method | Sensors (Basel, Switzerland) |
| 22481972 | 2012-01-01 | Relationship between concentration difference of different density lipoproteins and shear stress in atherosclerosis | Computational and mathematical methods in medicine |
| 21793199 | 2011-10-01 | Perfluoroalkyl and polyfluoroalkyl substances in the environment: terminology, classification, and origins | Integrated environmental assessment and management |
| 21732447 | 2011-08-08 | Synthetic utilization of 2-chloro-1,1,1,2-tetrafluoroethane | Chemistry (Weinheim an der Bergstrasse, Germany) |
| 21810558 | 2011-06-21 | Comparative examination of subcutaneous tissue reaction to high molecular materials in medical use | European journal of medical research |
| 20306345 | 2011-06-01 | Cysteine S-conjugate β-lyases: important roles in the metabolism of naturally occurring sulfur and selenium-containing compounds, xenobiotics and anticancer agents | Amino acids |
| 21674312 | 2011-06-01 | Infective endocarditis in a child caused by Cardiobacterium hominis after right ventricular outflow tract reconstruction using an expanded tetrafluoroethylene conduit | General thoracic and cardiovascular surgery |
