4-aminophenol

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2010 08 30 to 2010 09 01

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

GLP compliance:

yes (incl. QA statement)

Type of method:

ring method

Surface tension:

61.13 mN/m

Temp.:

20 °C

Conc.:

1 g/L

1.1   Surface Tension of a 1 g/L Aqueous Solution of p-Aminophenol

 

Table2:    Surface Tension, Temperature

Measurement No.*	Time** [min]	Surface Tension [mN/m]	Temperature [°C]
1	253.41	61.21	19.9
2	254.14	61.17	19.9
3	254.88	61.17	19.9
4	255.64	61.16	19.9
5	256.37	61.15	19.9
6	257.11	61.12	19.9
7	257.85	61.08	19.9
8	258.59	61.08	19.9
9	259.31	61.07	19.9
10	260.04	61.08	19.9
MV	-	61.13	19.9
SD	-	0.05	0.00

MV=mean value

SD=standard deviation
*)   of the last 10 measurements

**) Time from transfer of the test solution into the test vessel until end of each measurement

 

Conclusions:

The surface tension of a 1 g/L aqueous solution of p-Aminophenol was determined to be 61.13 mN/m (standard deviation 0.05 mN/m).

Due to the fact that the surface tension is > 60 mN/m, the test item is classified as not surface-active substance

Description of key information

The experimental result from the key study is 61.13 mN/m at 20 C in 1000 mg/L.

Key value for chemical safety assessment

Surface tension:

61.13

in mN/m at 20°C and concentration in mg/L:

1 000