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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Surface tension

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Justification for type of information:
Data is from experimental report
Qualifier:
according to guideline
Guideline:
other: ISO 9101:1987Surface active agents: Determination of interfacial tension -Drop volume method.
Principles of method if other than guideline:
to determine the surface tension of the test chemical
GLP compliance:
no
Type of method:
other: drop count
Key result
Surface tension:
68.99 mN/m
Temp.:
20 °C
Remarks on result:
other: Surface tension of test chemical was reported to be 68.99 mN/m

observation table -

Density of Test Chemical in g/cm³ 0.92
Surface tension of water at 20 °C 72.86
Density of water at 20 °C 0.9982

Method Details

Observations 

Remarks if, any

Atmospheric pressure(Mean)

hPa

977.4

 

No. of drops of water (nw)(Mean)

 

75

No. of drops of test chemical (nl)(Mean)

 

73

CALCULATIONS
 Surface Tension:
Where,                               
¥l= surface tension of test chemical
¥w = surface tension of water
ρl= density of test chemical
ρw =density of water
nl= no. of drops of test chemical
nw = no. of drops of water

¥l=0.92X75X72.86
         0.9982X73

¥l  =    5,027.34 / 72.87
¥l   =  68.99 dynes/cm

Conclusions:
Surface tension of test chemical was determined to be 68.99 mN/m at 20 deg c.
Executive summary:

Based on the data available from study , the surface tension of the test chemical was determined to be 68.99 mN/m at 20 deg c.

Description of key information

Based on the data available from study , the surface tension of the test chemical was determined to be 68.99 mN/m at 20 deg c.

Key value for chemical safety assessment

Surface tension:
68.99

Additional information

Based on the data available from study , the surface tension of the test chemical was determined to be 68.99 mN/m at 20 deg c.