Registration Dossier
Registration Dossier
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EC number: 234-719-8 | CAS number: 12027-38-2
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- 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:
- 2 015
- Report date:
- 2015
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- CIPAC MT 75 (Determination of pH Values)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 12-wolframosilicic acid
- EC Number:
- 234-719-8
- EC Name:
- 12-wolframosilicic acid
- Cas Number:
- 12027-38-2
- Molecular formula:
- H.1/4O40SiW12
- IUPAC Name:
- tetrakis(hexaoxocyclotritungstoxane); silicic acid
- Test material form:
- solid
Constituent 1
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Sigma Aldrich, Batch no: MKBQ2638V
- Purity test date: 22/10/13
Reagents
- Reagent:
- water
Results and discussion
pH valueopen allclose all
- pH value:
- 1.98
- Temp.:
- 19.4 °C
- Concentration:
- 10 g/L
- Remarks on result:
- other: experiment #1
- pH value:
- 1.97
- Temp.:
- 19.4 °C
- Concentration:
- 10 g/L
- Remarks on result:
- other: experiment #2
Applicant's summary and conclusion
- Executive summary:
The pH of a 10g/L solution was determined to be 1.98. According to the classification guidelines, substances with pH<2 are expected to produce significant effects on the skin and this substance is therefore regarded as corrosive and will be classifid a such based on this data.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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