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Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
The reliability is rated 2 because the method of the study is similar to the standard guideline of reference (OECD 115), which describes a procedure designed to evaluate this endpoint. The results were reviewed for reliability and assessed as valid. Study not conducted under GLP conditions

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
yes
Remarks:
Phenoxyethanol was used instead of water
GLP compliance:
no
Type of method:
OECD harmonised ring method

Test material

Constituent 1
Chemical structure
Reference substance name:
tetrakis{9-[2-(ethoxycarbonyl)phenyl]-3,6-bis(ethylamino)-2,7-dimethylxanthylium} C12-(branched and/or linear)-alkyl-(4-sulfonatophenoxy)benzenesulfonate and oxybis[C12-(branched and/or linear)-alkyl-benzenesulfonate]
EC Number:
700-761-5
Molecular formula:
not applicable
IUPAC Name:
tetrakis{9-[2-(ethoxycarbonyl)phenyl]-3,6-bis(ethylamino)-2,7-dimethylxanthylium} C12-(branched and/or linear)-alkyl-(4-sulfonatophenoxy)benzenesulfonate and oxybis[C12-(branched and/or linear)-alkyl-benzenesulfonate]
Details on test material:
- Name of test material (as cited in study report): Sepisol Fast Red SN
- Substance type: organic salt - UVCB
- Appearance/Physical state: red powder
- Lot/batch No.:029244
- Stability under test conditions:stable
- Storage condition of test material: at ambient temperature

Results and discussion

Surface tension
Surface tension:
39 mN/m
Temp.:
23 °C
Conc.:
16.66 other: % w/w

Applicant's summary and conclusion

Conclusions:
Under the experimental conditions, the surface tension was calculated to be 39.0 mN/m at 23°C.

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