PFOA is a kind of strong organic acid
Perfluorooctanoic Acid(PFOA)
Conformable with:Q/DYS 006-2007
PFOA is a kind of strong organic acid, which has low surface tension and high surface activity,
being used as surfactant, dispersant and additive. PFOA and its derivatives are important
intermediates for fluoride hydrophobic and hydrophilic agent, and leather finishing agent.
Quality Specification
Items | Unit | A2 grade | A grade | |
Appearance | color | --- | white | white |
condition | --- | crystal flakes | crystal flakes | |
Solution color | --- | colorless or light yellow | colorless or light yellow | |
Crystallizing point (normal pressure),≥ | °C | 37.5 | 47.5 | |
Absorbance (460nm),≤ | --- | 0.02 | 0.02 | |
Straight chain content,≥ | % | 73 | 90 | |
Acidity(NaOH demarcated) | mg/g | 96.5-99.5 | 96.5-99.5 | |
Fe3+content,≤ | ppm | 4 | 4 | |
Physical properties
Items | Unit | Index |
Chemical Name |
| Perfluorooctanoic acid |
CAS |
| 335-67-1 |
Molecular formula | --- | C7F15COOH |
Structural formula | --- |
|
Molecular weight | g/mol | 414.09 |
Boiling point (101.3kpa) | °C | 189~192 |
Melting point | °C | 55~60 |
Solubility |
| Solubility in 32°C water:0.01~0.023mol/L |
Danger Label | --- | 8(corrosion) |
Main Applications
The ammonium or sodium salt of PFOA is excellent anion surfactant and indispensable for
preparation of fluoride resin (PTFE,PVDF,FEP,ETFE) and FKM. PFOA is also effective metal
detergent and intermediates of finishing agent for hydrophobic and hydrophilic leather,
paper, and fiber. Its ester derivatives can be used as effective and high resolution stationary
liquid for chromatogram analysis.
Packing, Transportation and Storage
1. The product is stored in wide-mouth glass bottle, 1.5kg. Each attached quality detection report form, and quality certificate
which indicate product name, net weight, grade, production date and manufacturer.
2. The product is transported according to dangerous product, and strong shock should
be avoided.
3. Stored in dry and clean places, and room temperature not above 40°C. Light and heat should be avoided.
4. When heating to melt the product, temperature should not exceed 140°C to prevent decompose.
