Butane-1,3-diol

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Study initiation date: 29 June 2009 Study completion date: 28 October 2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP-Guideline Study

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Version / remarks:

adopted on 27 July 1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Version / remarks:

Directive 92/69/EEC, Official Journal L 383 A 1992

Deviations:

no

GLP compliance:

yes

Type of method:

ring method

Specific details on test material used for the study:

Storage: at approx. 4 °C/ cool; at room temperature

Key result

Surface tension:

72.6 mN/m

Temp.:

20 °C

Conc.:

1 g/L

Details on single measurements:

	First run	Second run
Number of measurements	10	10
Total measuring time [min:s]	6:07	6:12
Measuring time of the last 10 measurements [min:s]	6:07	6:12
Measurement 1	72.60	72.28
Measurement 2	72.59	72.31
Measurement 3	72.59	72.32
Measurement 4	72.59	72.34
Measurement 5'	72.58	72.37
Measurement 6	72.58	72.38
Measurement 7	72.58	72.39
Measurement 8	72.57	72.41
Measurement 9	72.58	72.42
Measurement 10	72.57	72.42
Mean value [mN/m]^1)	72.58	72.36
Surface tension [mN/m]^2)	72.68	72.46
Mean value [mN/m]	72.6

1) Mean value of the last ten measurements

2) corrected mean value (measured value x apparatus factor = corrected value)

Conclusions:

Surface tension (OECD 115): 72.6 mN/m at 20°C

Executive summary:

The surface tension of aqueous solutions of the test item was determined according to OECD guideline no. 115 [adopted on 27 July 1995] and EU test method A.5 [Directive 92/69/EEC, Official

Journal L 383 A 1992] with the ring method.

Surface tension (at 20°C): 72.6 mN/m

Description of key information

Surface tension (OECD 115): 72.6 mN/m at 20 °C

Key value for chemical safety assessment

Surface tension:

72.6

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

1 000

Additional information

The surface tension of aqueous solutions of the test item was determined according to OECD guideline no. 115 [adopted on 27 July 1995] and EU test method A.5 [Directive 92/69/EEC, Official Journal L 383 A 1992] with the ring method.

Surface tension (at 20°C): 72.6 mN/m