Registration Dossier
Registration Dossier
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EC number: 219-283-9 | CAS number: 2402-79-1
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 23 June 2009 to 10 July 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- yes
- Remarks:
- The surface tension result was not corrected using the Harkins-Jordan correction table as the correction is not applicable to the apparatus used.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- 2,3,5,6-tetrachloropyridine
- EC Number:
- 219-283-9
- EC Name:
- 2,3,5,6-tetrachloropyridine
- Cas Number:
- 2402-79-1
- Molecular formula:
- C5HCl4N
- IUPAC Name:
- 2,3,5,6-tetrachloropyridine
- Details on test material:
- Lot number XF09160201 of purity = 99.4%
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 72.4 mN/m
- Temp.:
- 21.3 °C
- Conc.:
- 20.7 mg/L
Any other information on results incl. tables
The readings, times and temperatures for the sample solution are shown in the following table:
Time (mins) |
Reading (mN/m) |
Temperature (ºC) |
73 |
72.5 |
21.2 |
84 |
72.5 |
21.2 |
94 |
72.5 |
21.4 |
104 |
72.5 |
21.4 |
113 |
72.0 |
21.4 |
Mean reading : 72.4 mN/m
Surface tension = reading
x calibration factor
= 72.4 x 1.00
= 72.4
mN/m
Temperature : 21.3 ± 0.5ºC
pH of sample solution : 6.6
The linearity of the detector response with respect to concentration was assessed over the nominal concentration range of 0 to 20 mg/l. This was satisfactory with a correlation coefficient of 1.00 being obtained.
Applicant's summary and conclusion
- Conclusions:
- The surface tension of a 2.07 x 10-2 g/l solution of test material has been determined to be 72.4 mN/m at 21.3 ± 0.5°C. The test material was considered not to be a surface active material.
- Executive summary:
The surface tension of a 2.07 x 10-2 g/l solution of test material has been determined to be 72.4 mN/m at 21.3 ± 0.5°C using a ring method specified in Method A5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008.
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