Registration Dossier
Registration Dossier
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EC number: 936-414-1 | CAS number: -
Nanomaterial Zeta potential
Administrative data
- Endpoint:
- nanomaterial Zeta potential
- Remarks:
- Baytubes Key study
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- GLP compliance:
- no
Test material
- Reference substance name:
- carbon
- EC Number:
- 936-414-1
- Molecular formula:
- C
- IUPAC Name:
- carbon
- Details on test material:
- Test material is meeting the form as described in section 4.5 of the IUCLID dossier.
Constituent 1
Results and discussion
Isoelectric point
- Key result
- Isoelectric Point:
- >= 5 - <= 6
- Medium:
- 1 mmolar Potassium Chloride solution
Any other information on results incl. tables
pH |
zeta potential |
deviation |
|
mean (mV) |
± |
1.9 |
41.4 |
2.9 |
2.99 |
39.3 |
1.5 |
4.26 |
21.4 |
6.5 |
5.04 |
34.5 |
1.7 |
5.41 |
-5.5 |
9.4 |
5.65 |
-2.2 |
10.8 |
7.48 |
-25.4 |
5 |
7.62 |
-20.9 |
8.4 |
7.86 |
-18.5 |
4.6 |
8.29 |
-3.7 |
3.4 |
9.38 |
-31.3 |
7.3 |
10.05 |
-46.9 |
1.9 |
11.11 |
-44.7 |
3.3 |
Applicant's summary and conclusion
- Executive summary:
The zeta-potential decreased with increasing pH value and the isoelectric point was found to be around pH 5 - 6.
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