Names | |
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Other names
pentafluoropropionic acid
perfluoropropanoic acid PFPrA C3 PFCA[1] | |
Identifiers | |
CAS Number
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3D model (JSmol)
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ChemSpider |
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ECHA InfoCard | 100.006.384 |
EC Number |
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PubChem CID
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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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C3HF5O2 |
Molar mass | 164.031 g·mol−1 |
Appearance | colorless liquid |
Density | 1.561 g/mL |
Boiling point | 96–97 °C (205–207 °F; 369–370 K) |
Acidity (pKa) | 0.38±0.10 |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards
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corrosive |
GHS labelling:[2] | |
Pictograms
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Signal word
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Danger |
Hazard statements
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H314, H332 |
Precautionary statements
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P280, P301+P330+P331, P305+P351+P338, P310 |
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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Perfluoropropionic acid (PFPrA) or pentafluoropropionic acid is an ultra-short chain perfluoroalkyl carboxylic acid with the formula CF3CF2CO2H. It is a colorless liquid that is strongly acidic. It soluble in both water and polar organic solvents. The compound is produced by electrochemical fluorination of the carboxylic acid or its acid fluoride derivative.[3]
It has a predicted pKa of 0.38, with an uncertainty of 0.10.[4] In many ways, it is comparable to trifluoroacetic acid.