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EC number: 454-800-3 | 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
- Surface tension:
- 68.94 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 000 mg/L
- Conclusions:
- The surface tension of 2 -chloro-S-chloromethylpyridine (CCMP) is 68.94 mN/m at 20°C.
- Executive summary:
The surface tension of 2 -chloro-5-chloromethylpyridine (CCMP) was determined according to guideline 92/69/ EEC method A.5. and OECD guideline 115. According to the EEC guideline a solution of about 1000 mg/L has been prepared, due to the fact that the water solubility of 2 -chloro-5-chloromethylpyridine (CCMP) is above 1000 mg/L.
The method (OECD harmonized ring method) is based on the measurement of the maximum vertical force, which is necessary to separate a ring being in contact with the surface of the liquid filled in a measuring cup, from the surface of this liquid.
Two aqueous solutions of the test item in distilled water ( 200.8 mg and 200.6 mg ad 200 mL) were prepared by shacking the flasks, stirring 2 and 3 h at room temperature and using the ultrasonic bath for 15 minutes. Ten measurements at a temperature of 20 °C + 0.5°C, approximately every 50 sec., were carried out. A correction factor (Harkins & Jordan) has been accounted.
A calibration of the apparatus was carried out using distilled water at 20 °C ± 0.5°C.
The surface tension of 2 -chloro-S-chloromethylpyridine (CCMP) is 68.94 mN/m at 20°C.
Reference
Description of key information
The surface tension of 2 -chloro-5-chloromethylpyridine (CCMP) was determined according to guideline 92/69/ EEC method A.5. and OECD guideline 115. According to the EEC guideline a solution of about 1000 mg/L has been prepared, due to the fact that the water solubility of 2 -chloro-5-chloromethylpyridine (CCMP) is above 1000 mg/L.
The method (OECD harmonized ring method) is based on the measurement of the maximum vertical force, which is necessary to separate a ring being in contact with the surface of the liquid filled in a measuring cup, from the surface of this liquid.
Two aqueous solutions of the test item in distilled water ( 200.8 mg and 200.6 mg ad 200 mL) were prepared by shacking the flasks, stirring 2 and 3 h at room temperature and using the ultrasonic bath for 15 minutes. Ten measurements at a temperature of 20 °C + 0.5°C, approximately every 50 sec., were carried out. A correction factor (Harkins & Jordan) has been accounted.
A calibration of the apparatus was carried out using distilled water at 20 °C ± 0.5°C.
The surface tension of 2 -chloro-S-chloromethylpyridine (CCMP) is 68.94 mN/m at 20°C.
Key value for chemical safety assessment
- Surface tension:
- 68.94
- in mN/m at 20°C and concentration in mg/L:
- 1 000
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