Registration Dossier
Registration Dossier
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EC number: 217-617-8 | CAS number: 1912-24-9
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 24 May 1993 to 22 february 1994
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 994
- Report date:
- 1994
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- not specified
- GLP compliance:
- yes
- Type of method:
- ring method
Test material
- Reference substance name:
- Atrazine
- EC Number:
- 217-617-8
- EC Name:
- Atrazine
- Cas Number:
- 1912-24-9
- Molecular formula:
- C8H14ClN5
- IUPAC Name:
- 6-chloro-N2-ethyl-N4-(propan-2-yl)-1,3,5-triazine-2,4-diamine
- Details on test material:
- Atrazine (technical)
Batch n. 2653, Ref 743
Purity: 97.5%
Expiry: stable until at least January 1995
Appaerance: white powder
Storage conditions: in the dark at 4°C
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 57.6 mN/m
- Temp.:
- 21 °C
- Conc.:
- 0.03 g/L
Any other information on results incl. tables
The measured value of the surface tension has been corrected for the weight of the liquid in the lamella drawn up by the ring as it lifts from the solution surface. The correction factor, applied for the correction, depends on the solution density, the ring diameter, the wire diameter and the acceleration du to the gravity.
Applicant's summary and conclusion
- Conclusions:
- the surface tension of atrazine (technica) has been determined as:
57.6 mN/m for a 90% saturated aqueous solution at 21°C.
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