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Sigma-Aldrich

Poly(tetrafluoroethylene)

powder (free-flowing), 1 μm particle size

Synonym(s):

Fluorinated polymer, Fluoropolymer, PTFE

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About This Item

Linear Formula:
(CF2CF2)n
CAS Number:
9002-84-0
MDL number:
MFCD00084455
UNSPSC Code:
12162002
PubChem Substance ID:
24866954
NACRES:
NA.23

form

powder (free-flowing)

particle size

1 μm

transition temp

Tm 321 °C

density

2.15 g/mL at 25 °C

SMILES string

F\C(F)=C(\F)F

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General description

Poly(tetrafluoroethylene) is a fluoropolymer that is commercially known as PTFE. Its properties include high thermal stability, excellent chemical resistance, low dielectric constant and low surface energy. It is a hydrophobic polymer that is majorly used as a protective coating on the metal surface.

Application

Inert lubricant.

Suitability

Low coefficient of friction, low critical surface energy and excellent antistick properties.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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The properties of poly (tetrafluoroethylene)(PTFE) in compression
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Repair of DNA breaks by single-strand annealing (SSA) is a major mechanism for the maintenance of genomic integrity. SSA is promoted by proteins (single-strand-annealing proteins [SSAPs]), such as eukaryotic RAD52 and λ phage Redβ. These proteins use a short single-stranded
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