Hexafluoroacetylacetone｜1522-22-1

Hexafluoroacetylacetone is the chemical compound with the formula CF3C(O)CH2C(O)CF3 (often abbreviated as hfac). This colourless liquid is a ligand precursor and a reagent used in MOCVD. Complexes of the conjugate base, often called Hfac−, exhibit enhanced volatility and Lewis acidity relative to analogous complexes derived from acetylacetone.
This organofluorine compound was first prepared by the condensation of ethyl ester of trifluoroacetic acid and 1,1,1-trifluoroacetone. It has been investigated as an etchant for copper and its complexes, such as Cu(Hfac)(trimethylvinylsilane) have been employed as precursors in microelectronics.
Being highly electrophilic, hfac hydrates in water to give the tetraol.

Chemical Name	Hexafluoroacetylacetone
Synonyms	1,1,1,5,5,5-Hexafluoro-2,4-pentanedione;2,4-Pentanedione, 1,1,1,5,5,5-hexafluoro-;HEXAFLUOROACETYLACETONE;(S)-(+)-1-Amino-2-propanol;1,1,1,5,5,5-Hexafluoropentane-2,4-dione;
CAS No.	1522-22-1
Molecular Formula	C5H2F6O2
Molecular Weight	208.05900
PSA	34.14000
LogP	1.63930

EINECS number	216-191-0
PubChem number	24874462
BRN number	1790138
MDL number	MFCD00000426

Appearance & Physical State	clear colorless to slightly yellow
Density	1.47 g/mL at 25ºC(lit.)
Boiling Point	70-71ºC(lit.)
Flash Point	22.8ºC
Refractive Index	1.332
Storage Condition	Flammables area
Vapor Pressure	6.813mmHg at 25°C

Hazard Class	8
Safety Statements	26-36/37/39-45
HS Code	2914700090
WGK Germany	3
Packing Group	II
RIDADR	UN 2920 8
Risk Statements	R10; R20/21/22; R34
Hazard Codes	C