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Table 1, Physical and Chemical Properties of CAS# 756-13-8

Property

IUCLID Section number

REACh Column 1 number

Value

Data source

Klimisch rank

Note

Appearance/physical state/color

4.1

7.1

Clear, colorless liquid

Expt.

1

Description from melting/freezing point robust study summary

Melting point/Freezing point

4.2

7.2

-108°C

Expt.

2

Freezes below any relevant

environmental temperature

Boiling Point

4.3

7.3

49.2 °C at 101.3 kPa

Expt.

1

Dynamic method 

Density

4.4

7.4

1.61

Expt.

1

Relative density (dimensionless), 20°C to water at 4 °C

Particle size distribution (Granulometry)

4.5

7.14

Not applicable

Waiving argument

N/A

Material is a liquid at 20 °C

Vapour pressure

4.6

7.5

40.4 kPa at 25 °C

Expt.

2

Dynamic method 

Partition coefficient

4.7

7.8

5.48

QSAR

2

Data required, but of no physical meaning.

Water Solubility

4.8

7.7

Not applicable

Waiving argument

N/A

Substance is hydrolytically unstable based on hydrolysis rate at pH 1.2, 5, 7, and 9

Solubility in organic solvents/fat solubility

4.9

N/A

24 g/kg at 37 °C

Expt.

3

 

Surface tension

4.10

7.6

10.80 mN/m at 25.0°C

Expt.

N/A

Substance is hydrolytically unstable based on hydrolysis rate at pH 1.2, 5, 7, and 9

Flash point

4.11

7.9

>49 °C at 100.9 kPa

Expt.

1

Substance boils without igniting 

Autoflammability

4.12

7.12

590 °C at 1011-1022 hPa

Expt.

1

 

Flammability

4.13

7.10

Not applicable

Waiving argument

N/A

 

Explosiveness

4.14

7.11

Not applicable

Waiving argument

N/A

 

Oxidizing properties

4.15

7.13

Not applicable

Waiving argument

N/A

Conclusion based on structure

Stability in organic solvents and identity of relevant degradation products

4.17

7.15

Incompatible with amines and alcohols

Waiving argument

N/A

 

Dissociation constant

4.21

7.16

Not applicable

Waiving argument

N/A

Substance is hydrolytically unstable

Viscosity

4.22

7.17

0.39 mm2/s @ 25°C

Expt.

2

 

 

Table 2, Physical and Chemical Properties of PFPA (degradation product), CAS# 422-64-0

Property

IUCLID Section number

REACh Column 1 number

Value

Data source

Klimisch rank

Note

Appearance/physical state/color

4.1

7.1

Clear, colorless liquid

Sigma-Aldrich MSDS

2

 

Melting point/Freezing point

4.2

7.2

-1.5°C

Expt.

2

 

Boiling Point

4.3

7.3

96.5°C

Handbook

2

 

Density

4.4

7.4

1.561 g/cm3at 20°C

Handbook

2

 

Particle size distribution (Granulometry)

4.5

7.14

Not applicable

Waiving argument

N/A

Substance is a liquid at 20 °C

Vapour pressure

4.6

7.5

53 hPa (39 mm Hg)

Sigma-Aldrich MSDS

2

 

Partition coefficient

4.7

7.8

pH      value
5.5     -1.31
7.0     -1.33
8.5     -1.33

QSAR

2

Partitioning behaviour is pH dependent

Water Solubility

4.8

7.7

>10 g/L

Expt.

1

Miscible in all proportions1

Surface tension

4.1

7.6

71.2 mN/m at 20 °C

Expt.

1

Study nominally of Novec 1230 solution

Flash point

4.11

7.9

Not applicable

Waiving argument

N/A

Under typical circumstances, PFPA will exist in aqueous solution.

Autoflammability

4.12

7.12

Not applicable

Waiving argument

N/A

Under typical circumstances, PFPA will exist in aqueous solution.

Flammability

4.13

7.10

Not applicable

Waiving argument

N/A

Under typical circumstances, PFPA will exist in aqueous solution.

Explosiveness

4.14

7.11

Not applicable

Waiving argument

N/A

Under typical circumstances, PFPA will exist in aqueous solution.

Oxidizing properties

4.15

7.13

Not applicable

Waiving argument

N/A

Under typical circumstances, PFPA will exist in aqueous solution.

Stability in organic solvents and identity of relevant degradation products

4.17

7.15

Not applicable

Waiving argument

N/A

Under typical circumstances, PFPA will exist in aqueous solution.

Dissociation constant

4.21

7.16

0.34

Literature

2

 

Viscosity

4.22

7.17

Not applicable

Waiving argument

N/A

Under typical circumstances, PFPA will exist in aqueous solution.

1, E.A. Kauck and A.R. Diesslin. 1951.  Some properties of perfluorocarboxylic acids.  Ind. Eng. Chem. Vol. 43, No. 10, pp. 2332-2334.