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EC number: 406-420-4 | CAS number: 69430-40-6 DC 5067
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- February 26 - 27, 1991
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP Study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 991
- Report date:
- 1991
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
- Reference substance name:
- α-trimethylsilanyl-ω-trimethylsiloxypoly[oxy(methyl-3-(2-(2-methoxypropoxy)propoxy)propylsilanediyl]-co-oxy(dimethylsilane))
- EC Number:
- 406-420-4
- EC Name:
- α-trimethylsilanyl-ω-trimethylsiloxypoly[oxy(methyl-3-(2-(2-methoxypropoxy)propoxy)propylsilanediyl]-co-oxy(dimethylsilane))
- Cas Number:
- 69430-40-6
- Molecular formula:
- Unspecified example: C18.3H46.8O5.8Si4.1
- IUPAC Name:
- 2,2,4,4,6,12,15-heptamethyl-6-[(trimethylsilyl)oxy]-3,5,10,13,16-pentaoxa-2,4,6-trisilaheptadecane
- Details on test material:
- Identification: DC 5067
Description: Clear, light brown liquid
Lot Number: AB 090122
Purity: >99%
Storage conditions: In the original container at room temperature in the dark
Stability under storage conditions: Stab1e
Expiry date: December 1, 1991
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 29 mN/m
- Temp.:
- 20 °C
Any other information on results incl. tables
Determination of the calibration factor Fb is described in the Appendix of the attached study report. Table 2 in the report shows the individual measurements and the corrected surface tension of a solution of test substance in double-distilled water at a saturated concentration.
Applicant's summary and conclusion
- Conclusions:
- The surface tension of a saturated solution of DC 5067 in water was determined to be 29.0 mN/m. Based on the criteria as mentioned in the proposed updated version of the EEC guideline, it was concluded that DC 5067 should be regarded as a surface active material.
- Executive summary:
The determination of the surface tension of an aqueous solution of DC 5067 was based on EEC-Directive A.5 5urface tensionn (1984), OECD Guideline no. 115 "Surface tension of aqueous solutions" (1981) and the proposed updated version of the EEC guideline (November 1989). The surface tension of a saturated solution of DC 5067 was determined to be 29.0 mN/m. Based on the criteria as mentioned in the proposed updated version of the EEC guideline, it was concluded that DC 5067 should be regarded as a surface active material. The temperature of measurement was 20.0 + 0.5°C.
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