Registration Dossier
Registration Dossier
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EC number: 700-923-5 | CAS number: 10305-39-2
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 31 March 2020 – 12 May 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring method
Test material
- Reference substance name:
- 3-(heptyloxy)propane-1,2-diol
- Cas Number:
- 10305-39-2
- Molecular formula:
- C10H22O3
- IUPAC Name:
- 3-(heptyloxy)propane-1,2-diol
- Test material form:
- liquid
- Details on test material:
- Physical Description: Clear slightly yellow liquid
Storage Conditions: At room temperature protected from light
Stability at higher temperatures: Yes, maximum temperature: 90°C, maximum duration: 120 minutes
Constituent 1
- Specific details on test material used for the study:
- critical micelle concentration: 3552 mg/L
Results and discussion
Surface tension
- Key result
- Surface tension:
- 36.04 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
Any other information on results incl. tables
Table: Surface tension measurements
Measurement |
Time passed after measurement start |
Surface tension |
|
individual σ multiplied by Harkins-Jordan corrected value |
mean σ
|
||
1 |
35.35 |
36.25 |
36.04 |
2 |
59.16 |
36.12 |
|
3 |
83.06 |
35.97 |
|
4 |
106.40 |
35.95 |
|
5 |
129.09 |
35.94 |
|
Applicant's summary and conclusion
- Conclusions:
- The surface tension of an aqueous substance solution at 1 g/L was determined to be 36.04 mN/m (at 20°C).
- Executive summary:
The OECD harmonized ring method was used in a GLP study based on EC A.5 and OECD 115. The surface tension of an aqueous substance solution at 1 g/L was determined to be 36.04 mN/m (at 20°C). According to EC A.5 the substance is surface active.
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