HEXAFLUOROACETYLACETONE
Synonym(s):1,1,1,5,5,5-Hexafluoro-2,4-pentanedione;1,1,1,5,5,5-Hexafluoroacetylacetone
- CAS NO.：1522-22-1
- Empirical Formula: C5H2F6O2
- Molecular Weight: 208.06
- MDL number: MFCD00000426
- EINECS: 216-191-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:27:03
What is HEXAFLUOROACETYLACETONE?
Chemical properties
clear colorless to slightly yellow liquid
The Uses of HEXAFLUOROACETYLACETONE
1,1,1,5,5,5-Hexafluoro-2,4-pentanedione acts as a chelating ligand. It is used as liquid crystal intermediate.
General Description
Hexafluoroacetylacetone forms metal-chelate complexes with Cu(II), Ni(II), Co(II), Nd(III), Rh(III), Fe(III) and Cr(III). Hexafluoroacetylacetone on hydration yields 1,1,1,5,5,5-hexafluoropentane-2,2,4,4-tetraol.
Purification Methods
It forms a dihydrate which has no UV spectrum compared with max (CHCl3) 273nm ( 7,800) for the anhydrous ketone. The dihydrate decomposes at ~90o. The hydrate (10g) plus anhydous CaSO4 (Drierite, 30g) are heated and distilled, the distillate is treated with more CaSO4 and redistilled. When the distillate is treated with aqueous NaOH and heated, the dihydrate crystallises on cooling. The Cu complex has m 135o (after sublimation). [Gilman et al. J Am Chem Soc 78 2790 1956, Belford et al. J Inorg Nucl Chem 2 11 1956, Beilstein 1 IV 3681.]
Properties of HEXAFLUOROACETYLACETONE
| Boiling point: | 70-71 °C (lit.) |
| Density | 1.47 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 32 °C |
| storage temp. | Inert atmosphere,Room Temperature |
| form | Liquid |
| pka | 4.30±0.10(Predicted) |
| Specific Gravity | 1.470 |
| color | Clear colorless to slightly yellow |
| Water Solubility | Not miscible in water. |
| Sensitive | Hygroscopic |
| BRN | 1790138 |
| CAS DataBase Reference | 1522-22-1(CAS DataBase Reference) |
| EPA Substance Registry System | 2,4-Pentanedione, 1,1,1,5,5,5-hexafluoro- (1522-22-1) |
Safety information for HEXAFLUOROACETYLACETONE
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for HEXAFLUOROACETYLACETONE
| InChIKey | QAMFBRUWYYMMGJ-UHFFFAOYSA-N |
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![3-[(4-([3-CHLORO-5-(TRIFLUOROMETHYL)-2-PYRIDINYL]OXY)ANILINO)METHYLENE]-1,1,1,5,5,5-HEXAFLUORO-2,4-PENTANEDIONE](https://img.chemicalbook.in/StructureFile/ChemBookStructure4/GIF/CB2716486.gif)
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