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Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
29 June 2010 - 03 August 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: This study has been performed according to OECD and EC guidelines and according to GLP principles.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
OECD harmonised ring method

Test material

Constituent 1
Chemical structure
Reference substance name:
Lysine hydrochloride
EC Number:
211-519-9
EC Name:
Lysine hydrochloride
Cas Number:
657-27-2
Molecular formula:
C6H14N2O2.ClH
IUPAC Name:
lysine hydrochloride
Details on test material:
- Name of test material (as cited in study report): L-Lysine Monohydrochloride
- Molecular formula: C6H14N2O2HCl
- Molecular weight: 182.65
- Substance type: Beige powder with lumps
- Physical state: Solid
- Analytical purity: 99.72%
- Impurities (identity and concentrations): -
- Composition of test material, percentage of components: -
- Isomers composition: -
- Purity test date: -
- Lot/batch No.: 0148
- Expiration date of the lot/batch: 28 May 2012
- Stability under test conditions: Stable
- Storage condition of test material: At room temperature in the dark
- Other: -

Results and discussion

Surface tension
Surface tension:
74 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Applicant's summary and conclusion

Conclusions:
The OECD harmonized ring method was used for the determination of the surface tension of L Lysine Monohydrochloride. The surface tension of a test solution at a concentration of 1 g/l in water and at 20°C was 74.0 mN/m. According to this, the test substance is considered not to be surface active.