Registration Dossier
Registration Dossier
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EC number: 200-291-6 | CAS number: 56-84-8
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Part of a guideline study with GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- pH determination of an aqueous suspension
- GLP compliance:
- yes
Test material
- Reference substance name:
- Aspartic acid
- EC Number:
- 200-291-6
- EC Name:
- Aspartic acid
- Cas Number:
- 56-84-8
- Molecular formula:
- C4H7NO4
- IUPAC Name:
- aspartic acid
- Test material form:
- solid: crystalline
- Details on test material:
- Supplier: Sponsor.
Batch No.: PRCA 015.
CAS No. 56-84-8.
Appearance: White, crystalline.
Purity: Approx. 99 %.
pH: 2.5 – 3.5 (4 g/L at 20 °C).
Melting range: 265 – 271 °C.
Solubility in water: 5 g/L at 25°C.
Conditions of storage: In the refrigerator, in the dark, may be used under light.
Date of expiry: 31 December 2002.
Constituent 1
Results and discussion
pH value
- pH value:
- 3.03
- Concentration:
- 10 g/L
- Remarks on result:
- other: Suspension at ambient temperature
Applicant's summary and conclusion
- Conclusions:
- The pH of a 1 % w/v suspension of L-aspartic acid was determined to 3.03.
- Executive summary:
The pH of a 1 % w/v suspension of L-aspartic acid was determined to 3.03.
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