Registration Dossier
Registration Dossier
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EC number: 270-279-3 | CAS number: 68424-19-1 This substance is identified by SDA Substance Name: C16-C18 and C18 unsaturated alkyl carboxylic acid triethanol amine salt and SDA Reporting Number: 11-006-14.
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study was conducted according to internationally accepted test guidelines and is considered relevant, adequate and reliable.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- ring method
- Surface tension:
- ca. 44 mN/m
- Temp.:
- 21 °C
- Conc.:
- 9.2 mg/L
- Conclusions:
- The surface tension is measured to be around 44.0 mN/m.
- Executive summary:
The test item "Fatty acids, C16-18 and C18-unsatd., compds. with triethanolamine" has a surface tension of 44.0 mN/m (concentration = 9.2 mg/1) in accordance with the test method A.5. "Surface Tension" as described in the Commission Regulation (EC) No 440/2008 of 30 May 2008 laying down test methods pursuant Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), also similar to OECD guideline for testing of chemicals OECD 115.
Reference
Table 1: study results of surface tension measurements of solution 1.
( c = 9.2 mg/l, Temp. = 21°C, ρ = 0.998 g/cm3, age of solution = 97 min.)
Surface tension of solution 1 |
|
Value 1 |
49.8 mN/m |
Value 2 |
46.8 mN/m |
Value 3 |
45.3 mN/m |
Value 4 |
44.0 mN/m |
Value 5 |
42.5 mN/m |
Value 6 |
41.6 mN/m |
Arithmetic mean |
45.0 mN/m |
Standard deviation |
3.0 mN/m |
Table 2: study results of surface tension measurements of solution 2.
(c = 9.2 mg/l, Temp. = 21°C, ρ = 0.998 g/cm3, age of solution = 104 min.)
Surface tension of solution 2 |
|
Value 1 |
47.3 mN/m |
Value 2 |
44.3 mN/m |
Value 3 |
42.0 mN/m |
Value 4 |
40.7 mN/m |
Value 5 |
39.8 mN/m |
Value 6 |
39.2 mN/m |
Arithmetic mean |
42.2 mN/m |
Standard deviation |
3.1 mN/m |
Description of key information
The surface tension is measured to be around 44.0 mN/m.
Key value for chemical safety assessment
- Surface tension:
- 44
- in mN/m at 20°C and concentration in mg/L:
- 9.2
Additional information
The test item " Fatty acids, C16-18 and C18-unsatd., compds. with triethanolamine" has a surface tension of 44.0 mN/m (concentration = 9.2 mg/1) in accordance with the test method A.5. "Surface Tension" as described in the Commission Regulation (EC) No 440/2008 of 30 May 2008 laying down test methods pursuant Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), also similar to OECD guideline for testing of chemicals OECD 115.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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