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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
31 July 2017 to 31 August 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
ring method

Test material

Constituent 1
Reference substance name:
2-Methyl-4-Isothiazolin-3-One Hydrochloride
Cas Number:
26172-54-3
Molecular formula:
C4H5NOS.HCl
IUPAC Name:
2-Methyl-4-Isothiazolin-3-One Hydrochloride
Test material form:
solid
Specific details on test material used for the study:
Batch Number 10013913, Purity >99.9%, Expiry Date 30 November 2018
Analytical grade and technical grade material are identical

Results and discussion

Surface tension
Key result
Surface tension:
ca. 71.3 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Any other information on results incl. tables

Measured surface tension of test item

 Measurement No.  Time expired (min)*  Temperature (°C)  Measured (mN/m)  Corrected1  (mN/m)   Corrected2 (mN/m)
 1 0  20.5  71.6    
 2 15  19.5  71.3    
 3 30  19.5  71.5    
 4 45  19.5  71.6    
 5 60  19.5  71.5    
 6 75  19.5  71.7    
     Mean value  71.5  71.4  71.3

1 corrected for the calibration factor (water)factor: 0.999

2 corrected by Harkins-Jordan-regression (y = 0.7232 * x 1.0756)

*Time expired since the test item solution was transferred into the test vessel

Applicant's summary and conclusion

Conclusions:
The surface tension of an aqueous solution of the test item (1 g/L) was determined to be: 71.3 mN/m at 20 °C.
Executive summary:

The surface tension of an aqueous solution of the test item (1 g/L) was determined to be: 71.3 mN/m at 20 °C.