1-Butanaminium, 4-hydroxy-N,N,N-trimethyl-4-oxo-, inner salt

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2000

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: study performed under GLP and in accordance with Czechian testing methods (similar to OECD-/EU-testing guidelines)

Cross-reference

Reason / purpose for cross-reference:

reference to same study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2000

Report date:

2005

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: Method V Surface tension (Regulation of the Ministry of Environment of the Czech Republic No. 222/2004 - identical with Method A.5 of Directive 67/548/EEC).

Deviations:

no

GLP compliance:

yes

Type of method:

ring method

Test material

Test material information

Constituent 1

Details on test material:

- Name of test material (as cited in study report): 4-butyrobetain (BUBET)
- Molecular formula: C7H15NO2
- Molecular weight: 145.20 g/mol
- Physical state: colourless solution

Results and discussion

Surface tension

Surface tension:

70.2 mN/m

Temp.:

20 °C

Conc.:

1 000 mg/L

Applicant's summary and conclusion

Conclusions:

The surface tension of an aqueous solution (conc. 1000 mg/l) was determined to be 70.2 mN/m at 20°C.

Executive summary:

The test was performed in 2005 under GLP according to the Czechian testing method V (similar to method A.5 of Directive 67/548/EEC).