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Physical & Chemical properties

Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016-17
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
27-07-1995
Deviations:
no
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Remarks:
Certificate No. 3287.01
Type of method:
plate method
Specific details on test material used for the study:
Sample:
Chemical Name Lauryl betaine
CAS# 683-10-3
EC# 221-669-5
Physical State liquid
Lot # 53715J16
Manufacturer Colonial Chemical
Received on November 22, 2016
Tested on February 2, 2017
Key result
Surface tension:
29.95 mN/m
Temp.:
21.5 °C
Conc.:
0.1 other: wt%

Standard deviation was 29.95 ± 0.27

Description of key information

Lauryl betaine was tested as a 0.1wt% solution in distilled water. Surface tension determinations were performed upon a clear solution.

The surface tension was reported as 29.95 ± 0.27 mN/m at 21.5 °C

Key value for chemical safety assessment

Surface tension:
29.95
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information