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EC number: 201-051-3 | CAS number: 77-71-4
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
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- Explosiveness
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- Oxidation reduction potential
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- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
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- Endpoint summary
- Stability
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- Environmental data
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- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
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- Long-term toxicity to aquatic invertebrates
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- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
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- Terrestrial toxicity
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- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
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- Specific investigations
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- Additional toxicological data

Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Testing was conducted between 26 October 2009 and 19 November 2009.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- yes
- Remarks:
- Please see Principles of method if other than guidelines.
- Principles of method if other than guideline:
- The determination was carried out using a White Electrical Institute interfacial tension balance and a procedure based on the ISO 304 ring method. With the exception of the following deviation, the experimental procedure used complied with that specified in Method A5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008.
1) The surface tension result was not corrected using the Harkins-Jordan correction table as the correction is not applicable to the apparatus used. Once calibrated, the balance and ring assembly used in this test give a direct reading for surface tension that is within the required accuracy (± 0.5 mN/m); this is as a result of the reduced ring dimensions.
This deviation has been considered not to have affected the integrity of the study. - GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Date of inspection: 19-08-2008 Date of Signature: 04-09-2009
- Type of method:
- other: The determination was carried out using a White Electrical Institute interfacial tension balance and a procedure based on the ISO 304 ring method.
Test material
- Reference substance name:
- DMH
- IUPAC Name:
- DMH
- Details on test material:
- Sponsor's identification: DMH
Description: white crystalline solid
Batch number: N5439431
Date received: 24 February 2006
Storage conditions: room temperature in the dark
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 71.6 mN/m
- Temp.:
- 21.2 °C
- Conc.:
- 1 g/L
Any other information on results incl. tables
Calibration factor (Φ)
The readings, temperatures and the corresponding calibration factors for glass double-distilled water are shown in the following table:Table 7.2
Reading (mN/m) |
Temperature (ºC) |
Literature Value (mN/m) |
Calibration Factor |
72.5 |
21.0 |
72.57 |
1.001 |
72.5 |
21.0 |
72.57 |
1.001 |
72.5 |
21.0 |
72.57 |
1.001 |
72.5 |
21.0 |
72.57 |
1.001 |
72.5 |
21.0 |
72.57 |
1.001 |
72.5 |
21.0 |
72.57 |
1.001 |
72.5 |
21.0 |
72.57 |
1.001 |
Mean Calibration Factor = 1.001 |
Sample solution readings
The readings, times and temperatures for the sample solution are shown in the following table:
Table 7.3
Time (mins) |
Reading (mN/m) |
Temperature (ºC) |
113 |
71.5 |
21.0 |
132 |
71.5 |
21.0 |
147 |
71.5 |
21.0 |
157 |
71.5 |
21.0 |
169 |
71.5 |
21.0 |
187 |
71.5 |
21.0 |
Surface tension = reading x calibration factor
= 71.5 x 1.001
= 71.6 mN/m
Temperature: 21.0 ± 0.5ºC
pH of sample solution: 6.33
Applicant's summary and conclusion
- Conclusions:
- The surface tension of a 1.00 g/l solution of test material has been determined to be 71.6 mN/m at 21.0 ± 0.5°C. The test material is considered not to be a surface-active material.
- Executive summary:
Method
The determination was carried out using a White Electrical Institute interfacial tension balance and a procedure based on the ISO 304 ringthod. With the exception of the following deviation, the experintal procedure used complied with that specified in Method A5 Surface Tension ofCommissionRegulation (EC) No 440/2008 of 30 May 2008.The surface tension result was not corrected using the Harkins-Jordan correction table as the correction is not applicable to the apparatus used. Once calibrated, the balance and ring assembly used in this test give a direct reading for surface tension that is within the required accuracy (± 0.5 mN/m); this is as a result of the reduced ring dimensions.
This deviation has been considered not to have affected the integrity of the study.
Conclusion
The surface tension of a 1.00 g/l solution of test material has been determined to be 71.6 mN/m at 21.0 ± 0.5°C. The test material is considered not to be a surface-active material.
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