Registration Dossier
Registration Dossier
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Reaction mass of tetrasodium 5-{[4-chloro-6-(4-{[2-(sulfonatooxy)ethyl]sulfonyl}anilino)-1,3,5-triazin-2-yl]amino}-4-hydroxy-3-[(4-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl) diazenyl]naphthalene-2,7-disulfonate and trisodium 5-({4-chloro-6-[4-(vinylsulfonyl) anilino]-1,3,5-triazin-2-yl}amino)-4-hydroxy-3-[(4-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl)diazenyl]naphthalene-2,7-disulfonate
EC number: 701-360-8 | CAS number: -
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:
- 6 February 1990
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- EEC/79/831, Annex V
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- ring method
- Key result
- Surface tension:
- 57.8 mN/m
- Temp.:
- 25 °C
- Conc.:
- 1 000 mg/L
- Conclusions:
- After correction with respect to the table given in the directive A.5. (Harkins-Jordan correction), the final value for the surface tension at 25 °C is:
W= 57.8 mN/m - Executive summary:
Study data conducted to Guideline EEC/79/831, Annex V Part A.5 in compliance with GLP.
After correction with respect to the table given in the directive A.5. (Harkins-Jordan correction), the final value for the surface tension at 25 °C is:
W=57.8 mN/m.
Reference
Six measurements at a temperature of 25 °C, every 5 min, were done:
Measurement |
1 |
2 |
3 |
4 |
5 |
6 |
time / min |
0 |
5 |
10 |
15 |
20 |
25 |
W / mN/m |
56.0 |
56.9 |
57.7 |
58.0 |
57.9 |
58.2 |
Description of key information
The surface tension of the aqueous solution at 25 °C has a mean value of 57.8 mN/m. The test item has surface-active properties.
Key value for chemical safety assessment
- Surface tension:
- 57.8
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
A study was conducted according to Guideline EEC/79/831, Annex V Part A.5 in compliance with GLP.
An aqueous solution of the test item in de-ionized water with a concentration of 1000 mg/L was prepared, stirred for 24 hours at room temperature and the solution was adapted to the measurement temperature for 30 minutes. After correction with respect to the table given in the directive A.5. (Harkins-Jordan correction), the test item has a mean surface tension of 57.8 mN/m. As the surface tension is lower than 60 mN/m, the test item has surface-active properties
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