Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
19th December 2013 - 17th January 2014
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
Test performed on upper liquid phase of the substance.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2014

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
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
Remarks:
ISO 304-1985 (E) ring method

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction products of triethanolamine esters of polyphosphoric acids with alkyl derivatives of pyridine
EC Number:
939-981-3
IUPAC Name:
Reaction products of triethanolamine esters of polyphosphoric acids with alkyl derivatives of pyridine
Test material form:
liquid: viscous
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Supplied: 20 June 2013
- Expiration date of the lot/batch: N/A

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature in the dark
- Stability under storage conditions: Stable
- Stability under test conditions: Stable

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: prepared as sample solution see below.
- Final dilution of a dissolved solid, stock liquid or gel:
- An aliquot 0.1088/0.1102g of test item was diluted to 100 mL with purified water.
- The sample solution was shaken at approximately 30 °C for 17½ hours at 200 rpm.
- The sample solution was equilibrated at 20 °C for 3½ hours.
- The solution was filtered using a 0.2 μm Nalgene nylon membrane filter. The filtered solution was diluted to 90% of its former concentration with purified water.

Results and discussion

Surface tension
Key result
Surface tension:
64.5 mN/m
Temp.:
19.5 °C
Conc.:
90 vol%

Any other information on results incl. tables

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

Sample 1

 Time (Mins) Reading (mN/m)  Temperature (ºC)

102

62.0 19.6 
125 63.5  19.6
138 64.5 19.6 
151 64.5 19.6 
165  64.5  19.6 
178  64.5  19.6 
194  64.5  19.6 

Sample 2

 Time (mins)  Reading (mN/m)   Temperature (ºC)
 114 63.0  19.6 
 132 64.5  19.6 
 144 64.5  19.6 
 159 64.5  19.6 
 172 64.5  19.6 
 184 64.5  19.6 

Applicant's summary and conclusion

Conclusions:
The surface tension of a 90 % saturated solution of test item in water has been determined to be 64.5 ± 0.5 mN/m at 19.5 ± 0.5 °C. The test item was considered to be not surface-active.
Executive summary:

The surface tension of a 90 % saturated solution in water has been determined to be 64.5 ± 0.5 mN/m at 19.5 ± 0.5 °C, using a ring method, designed to be compatible with Method A5 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 to be not surface-active.