Registration Dossier
Registration Dossier
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EC number: 210-415-0 | CAS number: 615-20-3
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Study period:
- 2003
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: Manufacturer data without proof
Data source
Referenceopen allclose all
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 003
- Report date:
- 2003
- Reference Type:
- review article or handbook
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2005
Materials and methods
- Principles of method if other than guideline:
- presumably pH measurement by calibrated pH electrode
- GLP compliance:
- no
Test material
- Reference substance name:
- 2-chlorobenzothiazole
- EC Number:
- 210-415-0
- EC Name:
- 2-chlorobenzothiazole
- Cas Number:
- 615-20-3
- Molecular formula:
- C7H4ClNS
- IUPAC Name:
- 2-chloro-1,3-benzothiazole
- Details on test material:
- no purity specified
Constituent 1
Results and discussion
pH value
- pH value:
- 1 - 3
- Remarks on result:
- other: information neither on temperature nor on concentration
Any other information on results incl. tables
It is reported in the BUA Report 256 that the pH is very low (pH 1 - 3) probably due to HCl being not completely separated from the substance during destillation. However, this information is not clear as the pH = 1 can only be reached by 3.6 g/L of HCl whereas the solubility of the substance is given as 311 mg/L. Thus it is not possible to reach such a low pH by dissolution of the dissolvable amount of the substance (even it would hydrolyze instantly and even if it would contain 10 % w/w of HCl). Thus, it is likely that the pH of the supernatant of a suspension of the substance in water is meant.
Applicant's summary and conclusion
- Conclusions:
- The aquatic solution of dissolved 2-Chlorobenzothiazole is acidic.
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