Registration Dossier
Registration Dossier
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EC number: 291-367-8 | CAS number: 90387-90-9
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 22 February 2011 - 25 February 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study generated according to internationally accepted testing guidelines.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 191
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- GLP according to German Chemikaliengesetz and Directive 2004/9/EC
Test material
- Reference substance name:
- Graphite, acid-treated
- EC Number:
- 291-367-8
- EC Name:
- Graphite, acid-treated
- Cas Number:
- 90387-90-9
- Molecular formula:
- C(Carbon) + acid + oxidant Not available by EC, (CnX mHX)
- IUPAC Name:
- carbon
- Details on test material:
- Name: Graphite, acid treated
Common Name: Expandable Graphite
CAS No.: 90387-90-9
Batch no.: 1706
Purity (nominal): n.a.
Appearance and colour: grey, solid
Expiration date: 09/02/2012 (determined as one year after receipt)
Storage conditions: at room temperature
Constituent 1
Results and discussion
pH valueopen allclose all
- pH value:
- 7.86
- Temp.:
- 20 °C
- Concentration:
- ca. 100 g/L
- pH value:
- 7.8
- Temp.:
- 20 °C
- Concentration:
- ca. 100 g/L
Any other information on results incl. tables
The alkalinity of Graphite, acid treated is recorded in Table1. The alkalinity was calculated as described in the field above.
Table1: Alkalinity of the substance Graphite, acid treated
Weight |
pH Value |
Volume of 0.01 mol/L HCl solution t [mL] |
Alkalinity, calculated as NaOH [%] m/m |
Mean Alkalinity, calculated as NaOH |
10.001 |
7.86 |
4.15 |
0.02 |
0.02 |
10.001 |
7.80 |
4.25 |
0.02 |
Applicant's summary and conclusion
- Conclusions:
- The mean alkalinity, calculated as NaOH, was determined to be 0.02 %, m/m.
- Executive summary:
The alkalinity of Graphite, acid treated (AT) was determined according to CIPAC MT 191. There was no significant alkalinity/acidity of Graphite, acid treated. The mean alkalinity, calculated as NaOH, was determined to be 0.02 % m/m.
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