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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1991
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study was conducted according to a current approved guideline and following good laboratory practices.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1991
Report date:
1992

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
GLP compliance:
yes
Type of method:
ring method

Test material

Constituent 1
Reference substance name:
reaction mass of: N,N-di(hydrogenated alkyl C14-C18)phthalamic acid dihydrogenated alkyl (C14-C18)amine
IUPAC Name:
reaction mass of: N,N-di(hydrogenated alkyl C14-C18)phthalamic acid dihydrogenated alkyl (C14-C18)amine
Constituent 2
Reference substance name:
A mixture of: N,N-di(hydrogenated alkyl C14-C18)phthalamic acid; dihydrogenated alkyl (C14-C18)amine
EC Number:
413-800-3
EC Name:
A mixture of: N,N-di(hydrogenated alkyl C14-C18)phthalamic acid; dihydrogenated alkyl (C14-C18)amine
Cas Number:
87787-81-3
Molecular formula:
C44H79NO3
IUPAC Name:
2-(dioctadecylcarbamoyl)benzoic acid; 2-(ditetradecylcarbamoyl)benzoic acid; 2-[(propan-2-yloxy)carbonyl]benzoic acid; 2-[octadecyl(tetradecyl)carbamoyl]benzoic acid; 2-octadecyl-2,3-dihydro-1H-isoindole-1,3-dione; 2-tetradecyl-2,3-dihydro-1H-isoindole-1,3-dione; benzene-1,2-dicarboxylic acid; dioctadecylamine; ditetradecylamine; octadecyl(tetradecyl)amine
Constituent 3
Reference substance name:
Tradename
IUPAC Name:
Tradename
Constituent 4
Reference substance name:
87787-81-3
EC Number:
618-070-1
Cas Number:
87787-81-3
IUPAC Name:
87787-81-3
Details on test material:
Test substance was treated as 100% pure. Test substance is stable at 50 deg C and Stored at room temperature in the dark. Expiry date April 30, 1992.. Test Sample was of Batch Number 198308

Results and discussion

Surface tension
Surface tension:
72.63 mN/m
Temp.:
19.75 °C
Remarks on result:
other: Study report indicates that the surface tension was measured using a saturated aqueous solution of Stepan TAB-2

Any other information on results incl. tables

No further information.

Applicant's summary and conclusion

Conclusions:
The surface tension of a saturated solution of Stepan TAB-2 was determined to be 70.0 mN/m. Based on the criteria as outlined in the proposed updated version of the EEC guideline, it was concluded in the study that Stepan TAB-2 should not be regarded as a surface active material.
Executive summary:

The surface tension of an aqueous solution of Stepan TAB-2 was determined according to OECD Guideline No. 115 following good laboratory practices. The ring method was employed. The surface tension of a saturated solution of Stepan TAB-2 was determined to be 70.0 mN/m. According to the criteria as outlined in the proposed updating of the Base Set Methods (Annex V of dir. 79/831), versions November 1989, Part A. 5, page 16; substances showing a surface tension lower than 60 mN/m under the conditions of this method, should be regarded as being surface active materials. It was therefore concluded in the study that Stepan TAB-2 should not be regarded as a surface active material.