Registration Dossier
Registration Dossier
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EC number: 230-989-6 | CAS number: 7394-38-9
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 10 April - 28 April,2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 27th July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- May 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- 71 mN/m
- Temp.:
- 20 °C
- Conc.:
- 200 other: mg / 200 ml
- Remarks on result:
- other: mean value
- Conclusions:
- The surface tension of p-Nitrobenzoic acid, compound with 2,2’,2”-nitrilotriethanol (1:1) aqueous solution (ca. 200 mg / 200 ml) was found to be 71.4, 71.2, 71.1, 70.9, 71.1 and 71.3 mN/m (resulting a mean value 71 mN/m) at 20 °C using the ring method.
As this value is higher than 60 mN/m, p-Nitrobenzoic acid, compound with
2,2’,2”-nitrilotriethanol (1:1) is classified as not surface active. - Executive summary:
In the course of this study aqueous solution was prepared containing 1 g/L concentration ofp-Nitrobenzoic acid, compound with 2,2’,2”-nitrilotriethanol (1:1). Surface tension of this solution was determined applying the ring method. The test was performed with the help of Krüss Easy Dyne type tensiometer.
The surface tension of p-Nitrobenzoic acid, compound with 2,2’,2”-nitrilotriethanol (1:1) aqueous solution (ca. 200 mg / 200 ml) was found to be71.4, 71.2, 71.1, 70.9, 71.1 and 71.3 mN/m (resulting a mean value 71 mN/m) atusing the ring method.
As this value is higher than 60 mN/m, p-Nitrobenzoic acid, compound with 2,2’,2”-nitrilotriethanol (1:1) is classified as not surface active.
Reference
Description of key information
The surface tension of p-Nitrobenzoic acid, compound with 2,2’,2”-nitrilotriethanol (1:1) aqueous solution (ca. 200 mg / 200 ml) was found to be 71.4, 71.2, 71.1, 70.9, 71.1 and 71.3 mN/m (resulting a mean value 71 mN/m) at 20 °C using the ring method.
As this value is higher than 60 mN/m, p-Nitrobenzoic acid, compound with 2,2’,2”-nitrilotriethanol (1:1) is classified as not surface active.
Key value for chemical safety assessment
- Surface tension:
- 71
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
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