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Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
May 2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
no
Type of method:
ring method
Key result
Surface tension:
32.7 mN/m
Temp.:
22 °C
Conc.:
100 vol%

RESULTS/CONCLUSION

 

The surface tension of DOTP was determined to be 32.7 +/- 1 mN/m at 22 ⁰C.

 

The raw surface tension data are reported in Table VIII-1.

 

Table VIII-1. Raw Surface Tension data

 

Run     Raw surface tension

1     36.4                 

2 36.4                    

3 36.8

Avg.         36.5

 

 

Table VIII-2. Toluene Surface Tension data (Reference VIII-1)

 

Temp, ⁰C     Surface Tension, mN/m

4.7                       30.11 +/- 0.05

14.66                   28.93 +/- 0.03

24.67                   27.76 +/- 0.05

29.68                   27.17 +/- 0.05

34.71                   26.60 +/- 0.05

39.72                   26.03 +/- 0.03

44.71                   25.46 +/- 0.04

54.73                   24.29 +/- 0.04

64.73                   23.22 +/- 0.10

 

REFERENCES

 

VIII-1. H. Kahl, T. Wadewitz, and J. Winkelmann, "Surface Tension of Pure Liquids and Binary Liquid Mixtures", J Chem Eng Data, Vol. 48, pp. 580-586 (2003).

 

 

 

Conclusions:
The surface tension of DOTP was determined to be 32.7 +/- 1 mN/m at 22 ⁰C.

Description of key information

The surface tension of DOTP was determined to be 32.7 +/- 1 mN/m at 22 ⁰C.

Key value for chemical safety assessment

Surface tension:
32.7
in mN/m at 20°C and concentration in mg/L:
100

Additional information

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