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Physical & Chemical properties

Surface tension

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Administrative data

Endpoint:
surface tension
Type of information:
migrated information: read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP compliant, guideline study, no restrictions

Data source

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

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
GLP compliance:
yes (incl. certificate)
Type of method:
ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Test Substance Name Hydrogenated Rosin
CAS No. 65997-06-0
Supplied By Eastman Chemicals
Description Light amber pellets.

Results and discussion

Surface tension
Surface tension:
78 mN/m
Temp.:
20 °C
Conc.:
0 mg/L

Any other information on results incl. tables

Apparatus : Commercially available tensiometer.

Starting volume of water (ml) : 100

Mass added (mg) : 2.967

Calibration factor : 1.233

Solution age (min) : 1440 & 1445

Temperature (°C) : 20

Note

Measured value of the surface tension of water : ..59.0 mN.m-1

EC standard reading for surface tension of water : 72.75 mN.m-1

Calibration factor is:

72.75 = 1.233

59.0

 Test No.  Test Temp (°C)

 Surface Tension

Reading (mN/m)

 Corrected Value using

calibration factor (mN/m)

 Corrected Value

(mN/m)

 1  20  63.5  78.3  78.3
 2  20  63.0  77.7  77.7

Result : 78.0 mN.m-1 (mean value)

Note

The calibration factor is determined by measuring the Surface Tension of water and comparing the value obtained in literature. The corrected

Applicant's summary and conclusion

Conclusions:
The following surface tension result was obtained: 78.0 mN.m-1 (mean of 2 runs)
Executive summary:

Surface tension for Hydrogenated Rosin was measured by ring method according to the protocol in EU Regulation (EC) 440/2008 (test A5) and in compliance with GLP. A surface tension of 78 nN/m at 20°C was determined (mean of 2 runs).