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EC number: 233-316-4 | CAS number: 10114-86-0
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental starting date: 28 April 2017; Experimental completion date: 03 November 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- Disodium 3,3'-[carbonylbis[imino(3-methoxy-4,1-phenylene)azo]]bis[benzenesulphonate]
- EC Number:
- 233-316-4
- EC Name:
- Disodium 3,3'-[carbonylbis[imino(3-methoxy-4,1-phenylene)azo]]bis[benzenesulphonate]
- Cas Number:
- 10114-86-0
- Molecular formula:
- C27H22N6Na2O9S2
- IUPAC Name:
- disodium 3,3'-[carbonylbis[imino(3-methoxy-4,1-phenylene)azo]]bis[benzenesulphonate]
- Test material form:
- solid: particulate/powder
- Details on test material:
- Identification: CIM-42(Direct Yellow 132)
Appearance/physical state: dark orange colored powder
Batch: 161011K
Purity: 94.0%
Expiry / Retest date: 01 December 2017
Storage conditions: Room temperature, in the dark over silica
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 72.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other: not surface-active
Any other information on results incl. tables
The readings, times and temperatures for the sample solutions are shown in the following tables:
Table: Sample 1
Age of Solution (mins) |
Reading (mN/m) |
Temperature (°C) |
71 |
72.5 |
20.2 |
80 |
72.5 |
20.4 |
88 |
72.5 |
20.4 |
97 |
72.5 |
20.4 |
105 |
72.5 |
20.4 |
Table : Sample 2
Age of Solution (mins) |
Reading (mN/m) |
Temperature (°C) |
142 |
72.5 |
20.4 |
150 |
72.5 |
20.4 |
159 |
72.5 |
20.4 |
168 |
72.5 |
20.4 |
176 |
72.5 |
20.4 |
Mean Sample 1 result : 72.5mN/m pH of
Sample 1 : 5.8
Mean Sample 2 result : 72.5mN/m pH of Sample 2
: 5.8
Mean result : 72.5mN/m
Overall temperature : 20.0 ± 0.5ºC
Applicant's summary and conclusion
- Conclusions:
- The mean surface tension of duplicate aqueous solutions of test item prepared at 1.0 g/L was determined to be 72.5 mN/m at 20.0 ± 0.5 °C. The test item was considered not to be surface-active.
- Executive summary:
72.5mN/m (mean result from duplicate 1.0 g/L aqueous solutions) at 20.0 ± 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.
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