Sebacohydrazide

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

06 Aug 2018 - 19 Oct 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Version / remarks:

1995

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Version / remarks:

2016

Deviations:

no

GLP compliance:

yes

Type of method:

OECD harmonised ring method

Test material

Test material information

Constituent 1

Reference substance name:

Sebacohydrazide

EC Number:

213-126-8

EC Name:

Sebacohydrazide

Cas Number:

925-83-7

Molecular formula:

C10H22N4O2

IUPAC Name:

sebacohydrazide

Test material form:

solid: particulate/powder

Details on test material:

Test item name (as stated in report): SDH
Test item storage: at room temperature protected from light

Results and discussion

Surface tension

Key result

Surface tension:

69.9 mN/m

Temp.:

20 °C

Remarks on result:

other: Conc.= 90% of test item saturation solubility in water.

Any other information on results incl. tables

Table: Surface tension measurements

Measurement	Time passed after measurement start [seconds]	Surface tension (mN/m)
		individual σ multiplied by Harkins-Jordan corrected value	mean σ multiplied by Harkins-Jordan corrected value
1	41.59	70.07	69.90
2	68.32	69.90
3	95.29	69.88
4	122.03	69.86
5	148.69	69.81

Applicant's summary and conclusion

Conclusions:

The surface tension of an aqueous substance solution at 90% of its saturation solubility in water was determined to be 69.90 mN/m (at 20°C).