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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
14 May 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study was perfomred according to guideline with one deviation that did not affect the integrity of the study.

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
yes
Remarks:
Result was not corrected using the Harkins-Jordan correction table as correction was not applicalbe to the apparatus used. Instrument gave a direct reading for surface tension within +/- 0.5mN/m. This deviation did not affect the integrity of the study.
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
yes
Remarks:
Result was not corrected using the Harkins-Jordan correction table as correction was not applicalbe to the apparatus used. Instrument gave a direct reading for surface tension within +/- 0.5mN/m. This deviation did not affect the integrity of the study.
GLP compliance:
yes (incl. QA statement)
Remarks:
Issued by- The Department of Health of the Government of the United Kingdom Issue date- 2009-11-26
Type of method:
ring method

Test material

Constituent 1
Chemical structure
Reference substance name:
Phosphorodithioic acid, mixed O,O-bis(1,3-dimethylbutyl and iso-Pr) esters, zinc salts
EC Number:
283-392-8
EC Name:
Phosphorodithioic acid, mixed O,O-bis(1,3-dimethylbutyl and iso-Pr) esters, zinc salts
Cas Number:
84605-29-8
Molecular formula:
Not applicable
IUPAC Name:
Phosphorodithioic acid, mixed O,O-bis(1,3-dimethylbutyl and iso-Pr) esters, zinc salts
Details on test material:
- Substance type: zinc coordination complex with alkyldithiophosphate ligands
-Analytical purity: 91 %

Results and discussion

Surface tension
Surface tension:
64.2 mN/m
Temp.:
21 °C
Conc.:
1.25 g/L
Remarks on result:
other: nominal concentration

Any other information on results incl. tables

Table 1. Determination of Calibration Factor (glass double-distilled water) 

 Reading (mN/m)

Temperature0C

Literature Value (mN/m)

Calibration Factor

72.0

21.0

72.57

1.008

72.5

21.0

72.57

1.001

72.0

21.0

72.57

1.008

72

21.0

72.57

1.008

72.0

21.0

72.57

1.008

72.5

21.0

72.57

1.001

Mean Calibration Factor = 1.006

  

Table 2. Test Sample Surface Tension Measurements 

Time (min)

Reading (mN/m)

 

Temperature0C

mN/m * Calibration factor

140

64.0

21.0

64.384

150

63.5

21.0

63.881

160

63.5

21.0

63.881

170

64.0

21.0

64.384

180

64.0

21.0

64.384

Mean Surface Tension (mN/m) =    64.2

pH of sample solution = 5.3

Applicant's summary and conclusion

Conclusions:
The surface tension of the substance is 64.2 mN/m. The substance is not a surface-active material.
Executive summary:

The surface tension of the substance was determined according to EU Method A.5 using the ring method based on ISO 304.

The surface tension of the substance is 64.2 mN/m at 21 degrees C and the substance is not regarded as a surface-active material according to the guideline.