Global InformationPerfluorohexanoic acid information
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| Names | |
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| IUPAC name
2,2,3,3,4,4,5,5,6,6,6-undecafluorohexanoic acid
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| Other names
methyl undecafluorohexanoate
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| Identifiers | |
CAS Number
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3D model (JSmol)
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| Abbreviations | PFHxA |
| ChEBI |
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| ECHA InfoCard | 100.005.634 |
| EC Number |
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PubChem CID
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| UNII |
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CompTox Dashboard (EPA)
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InChI
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SMILES
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| Properties | |
Chemical formula
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C6HF11O2 |
| Molar mass | 314.054 g·mol−1 |
| Appearance | Colorless liquid |
| Density | 1.757 g/cm3[1] |
| Boiling point | 157 °C (314.6 °C; 430 K)[2] |
| log P | 3.48 [2] |
| Vapor pressure | 1.98 mm Hg [2] |
Atmospheric OH rate constant
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5.2 10−13 cu cm/molec sec [2] |
| Acidity (pKa) | -0.16 [2] |
| Hazards | |
| GHS labelling: | |
Pictograms
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Signal word
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Danger |
Hazard statements
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H314 |
Precautionary statements
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P264, P280, P301+P330+P331, P303+P361+P353, P304+P340+P310, P305+P351+P338+P310, P363, P405, P501 |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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140 mg/L (B. calyciflorus over 24hrs) |
| Safety data sheet (SDS) | [1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Perfluorohexanoic acid (PFHxA) is a fluorinated carboxylic acid derivative of hexanoic acid. Fluorinated polymers with six carbon or less commonly degrade into perfluorohexanoic acid.[3]
Perfluorohexanoic acid has been found to rapidly bioaccumulate.[3]
In 2020 Michigan adopted drinking water standards for 5 previously unregulated PFAS compounds including PFHxA which has a maximum contaminant level (MCL) of 400 parts per billion (ppb).[4][5]
- ^ a b "SAFETY DATA SHEET Perfluorohexanoic acid". Sigmaaldrich. August 3, 2021. Retrieved April 5, 2022.
- ^ a b c d e PubChem. "Perfluorohexanoic acid". pubchem.ncbi.nlm.nih.gov. Retrieved 2022-04-05.
- ^ a b Zahid, Muhammad; Heredia-Guerrero, Jose A.; Athanassiou, Athanassia; Bayer, Ilker S. (July 2017). "Robust water repellent treatment for woven cotton fabrics with eco-friendly polymers". Chemical Engineering Journal. 319: 321–332. doi:10.1016/j.cej.2017.03.006. hdl:10261/344622.
- ^ Matheny, Keith (3 August 2020). "Michigan's drinking water standards for these chemicals now among toughest in nation". Detroit Free Press. Archived from the original on 31 January 2022. Retrieved 31 March 2022.
- ^ "New state drinking water standards pave way for expansion of Michigan's PFAS clean-up efforts". Michigan.gov. 3 August 2020. Archived from the original on 3 January 2022. Retrieved 5 April 2022.