Registration Dossier
Registration Dossier
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EC number: 241-155-6 | CAS number: 17090-93-6
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 022
- Report date:
- 2022
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- sodium 2-amino-3-carboxypropanoate
- Cas Number:
- 323194-76-9
- Molecular formula:
- C4H7NO4.xNa
- IUPAC Name:
- sodium 2-amino-3-carboxypropanoate
- Test material form:
- solid: particulate/powder
- Details on test material:
- Name: L-aspartic acid, sodium salt monohydrate 1
Batch/Lot number: Z201125/ VG29848563
CAS number: 323194-76-9
Anhydrous substance name: L-aspartic acid, sodium salt, CAS: 17090-93-6
Appearance: Solid, white, crystalline powder
Purity: 98%
Expiry date: 24 November 2022
Storage conditions: Room temperature (15-25 ºC), protected from humidity (tight closed
container)
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- ca. 72.45 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
Applicant's summary and conclusion
- Conclusions:
- After correction, the determined value of surface tension of aspartic acid sodium salt monohydrate at 20.1°C is 72.45 mN/m (concentration of the test item equals 1.0 g/L).
- Executive summary:
Determination of the surface tension was carried out in accordance with Standard Operating Procedure SOP/BS-07/b (edition 5) based on the OECD Guideline for Testing of Chemicals no115 “Surface tension of Aqueous Solutions”.
The method is based on the measurement of the maximum force necessary to exert vertically, a ring being in contact with the surface of the test liquid placed in a measuring cup, and to separate it from this surface, and to draw up the film that has formed.
After correction, the determined value of surface tension of aspartic acid sodium salt monohydrate at 20.1°C is 72.45 mN/m (concentration of the test item equals 1.0 g/L).
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