Reaction mass of rel-(2R,3aR,6R,7aR)-2,6-dimethyl-3a-(propan-2-yl)octahydro-1-benzofuran and rel-(2R,3aR,6S,7aR)-2,6-dimethyl-3a-(propan-2-yl)octahydro-1-benzofuran and rel-(2R,3aS,6S,7aS)-2,6-dimethyl-3a-(propan-2-yl)octahydro-1-benzofuran

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 10 November 2015 and 04 April 2016.

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study is considered to be a reliability 1 as it has been conducted according to OECD Test Guideline 115 using the ring method and in compliance with GLP.

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

ring method

Key result

Surface tension:

64.5 mN/m

Temp.:

21.5 °C

Conc.:

90 other: % saturated concentration in water

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

Sample 1

Time (mins)	Reading (mN/m)	Temperature (°C)
66	64.0	21.6
72	64.5	21.6
79	64.5	21.6
85	65.0	21.6
92	64.5	21.6
98	65.0	21.6

 

Sample 2

Time (mins)	Reading (mN/m)	Temperature (°C)
97	63.5	21.6
103	64.0	21.6
110	64.0	21.6
116	64.5	21.6
123	64.5	21.6
129	64.0	21.6

Mean Sample 1 result :          64.7 mN/m                 

Mean Sample 2 result :          64.2 mN/m (mean of the last five readings on a plateau)     

Mean result                :          64.5 mN/m

pH of Sample 1         :          4.1                              pH of Sample 2 :        4.2

Overall result              :          64.2 to 64.7 mN/m

Overall temperature   :          21.5± 0.5ºC

Conclusions:

The mean surface tension of duplicate solutions of test item prepared at 90 % saturated concentration in water has been determined to be 64.5 mN/m at 21.5 ± 0.5 °C. The test item was considered not to be surface-active.

Executive summary:

The surface tension of the test substance IFF 215 (Floriane) prepared at 90 % saturated concentration in water has been determined to be 64.5 mN/m at 21.5 ± 0.5 °C. The test item was considered not to be surface-active according to OECD Guidelines for Testing of Chemicals using the ring method.

Description of key information

The surface tension of the test substance IFF 215 (Floriane) prepared at 90 % saturated concentration in water has been determined to be 64.5 mN/m at 21.5 ± 0.5 °C. The test item was considered not to be surface-activeaccording to OECD Guidelines for Testing of Chemicals using the ring method.

Key value for chemical safety assessment

Surface tension:

64.5