Fluoroether E-1

Fluoroether E-1 (known chemically as heptafluoropropyl 1,2,2,2-tetrafluoroethyl ether, is a chemical compound that is among the class of per- and polyfluoroalkyl substances (PFAS). This synthetic fluorochemical is used in the GenX process, and may arise from the degradation of GenX chemicals including FRD-903.^[2][3]

Fluoroether E-1

Names
Other names heptafluoropropyl 1,2,2,2-tetrafluoroethyl ether, secondary hydrogen endcap
Identifiers
CAS Number	3330-15-2
3D model (JSmol)	Interactive image
ChemSpider	85066
ECHA InfoCard	100.196.998
EC Number	236-236-8
PubChem CID	94258
CompTox Dashboard (EPA)	DTXSID8052017
InChI InChI=1S/C5HF11O/c6-1(2(7,8)9)17-5(15,16)3(10,11)4(12,13)14/h1H
SMILES C(C(F)(F)F)(OC(C(C(F)(F)F)(F)F)(F)F)F
Properties
Chemical formula	C5HF11O
Molar mass	286.044 g·mol−1
Appearance	Colourless liquid
Density	1.538/cm³ (at 20 °C)
Boiling point	40–42 °C (104–108 °F; 313–315 K)
Hazards
GHS labelling:[1]
Pictograms
Signal word	Warning
Hazard statements	H302, H314, H335
Precautionary statements	P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
NFPA 704 (fire diamond)	3 2 0
Safety data sheet (SDS)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Production

The main production of Fluoroether E-1 is within the GenX process where FRD-903 (2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propanoic acid) is used to generate (FRD-902) ammonium 2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propanoate, and Fluoroether E-1 (heptafluoropropyl 1,2,2,2-tetrafluoroethyl ether).^[4]

Properties

Fluoroether E-1 is a colorless liquid that is practically insoluble in water. It is volatile and has a low boiling point.^[5]