Registration Dossier
Registration Dossier
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EC number: 275-959-3 | CAS number: 71735-61-0
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: well performed study according to guideline developed and agreed upon by the ETAD in january 2005 for colorants with very low solubility
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: method developed by ETAD
- GLP compliance:
- no
- Type of method:
- other: ETAD method
Test material
- Reference substance name:
- Sodium bis[4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-N-(3-methoxypropyl)benzenesulphonamidato(2-)]cobaltate(1-)
- EC Number:
- 275-959-3
- EC Name:
- Sodium bis[4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-N-(3-methoxypropyl)benzenesulphonamidato(2-)]cobaltate(1-)
- Cas Number:
- 71735-61-0
- Molecular formula:
- C40H38CoN6O10S2.Na
- IUPAC Name:
- Cobaltate(1-), bis[4-(hydroxy-kO)-3-[2-[2-(hydroxy-kO)-1-naphthalenyl]diazenyl-kN1]-N-(3-methoxypropyl)benzenesulfonamidato(2-)]-, sodium (1:1)
- Details on test material:
- purity 91.5 %
Constituent 1
Results and discussion
Water solubility
- Water solubility:
- 128 mg/L
- Temp.:
- 23 °C
- pH:
- > 6.4 - < 6.8
- Details on results:
- Three measurements were performed with the method described above
Individual results:
Absorption Water Sol
(d = 1 cm, dil. 1:5) mg/l
a1 0.697 124
a2 0.731 130
a3 0.734 130
Average 128
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information): moderately soluble (100-1000 mg/L)
The water solubility ot the substance was determined as 128 mg/L at 23°C. - Executive summary:
The water solubility of the substance was determined 3 times according to the method developed by the ETAD at 23°C. The average of the results was 128 mg/L.
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