Bis(2-hydroxyethyl) sulphone

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

The study was conducted between 03 July 2016 and 03 September 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

GLP compliance:

yes (incl. QA statement)

Type of method:

ring method

Specific details on test material used for the study:

Identification: BHES
Other names: Bis(2-hydroxyethyl) sulphone
Appearance/Physical state: White solid block
Batch: 160226
Purity: 99.64%
Expiry date: 01 March 2017
Storage conditions: Room temperature in the dark

Key result

Surface tension:

72 mN/m

Temp.:

21.8 °C

Conc.:

1 g/L

The readings, times and temperatures for the sample solutions are shown in the following tables:

Sample 1

Time (mins)	Reading (mN/m)	Temperature (°C)
70	72.0	21.8
89	72.0	21.8
107	72.0	21.8
126	72.0	21.8
145	72.0	21.8

Sample 2

Time (mins)	Reading (mN/m)	Temperature (°C)
79	71.5	21.8
98	72.0	21.8
117	72.0	21.8
135	72.0	21.8
154	72.0	21.8
168	72.0	21.8

Mean Sample 1 result :  72.0mN/m                 pH of Sample 1: 6.2

Mean Sample 2 result :  72.0mN/m                 pH of Sample 2: 6.2

Mean result : 72.0mN/m

Overall temperature: 21.8 ± 0.5ºC

Discussion

According to criteria mentioned in Method EC A.5, substances showing a surface tension lower than 60 mN/m under the conditions of this method should be regarded as being surface-active.

Conclusions:

The mean surface tension of a duplicate solutions prepared at nominally 1 g/L solutions of test item in water has been determined to be 72.0 mN/m at 21.8 ± 0.5 °C. The test item was considered not to be surface-active.

Executive summary:

72.0 mN/m (mean of duplicate 1 g/L solutions) at 21.8 ± 0.5 °C, using a ring method, designed to be compatible with Method A.5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 115 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. The test item was considered not to be surface-active.

Description of key information

72.0 mN/m (mean of duplicate 1 g/L solutions) at 21.8 ± 0.5 °C, using a ring method, designed to be compatible with Method A.5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 115 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. The test item was considered not to be surface-active.

Key value for chemical safety assessment

Surface tension:

72

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

1 000