Registration Dossier
Registration Dossier
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EC number: 276-857-1 | CAS number: 72812-34-1
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015
- 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:
- 2 015
- Report date:
- 2015
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: method developed by ETAD
- GLP compliance:
- no
Test material
- Reference substance name:
- Hydrogen [1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphtholato(2-)][1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-) , compound with 3-[(2-ethylhexyl)oxy]propylamine (1:1)
- EC Number:
- 276-857-1
- EC Name:
- Hydrogen [1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphtholato(2-)][1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-) , compound with 3-[(2-ethylhexyl)oxy]propylamine (1:1)
- Cas Number:
- 72812-34-1
- Molecular formula:
- C32H18CrN6O8.C11H25NO.H
- IUPAC Name:
- Chromate(1-), [1-[2-[2-(hydroxy-kO)-4-nitrophenyl]diazenyl-kN1]-2-naphthalenolato(2-)-kO][1-[2-[2-(hydroxy-kO)-5-nitrophenyl]diazenyl-kN1]-2-naphthalenolato(2-)-kO]-, hydrogen, compd. with 3-[(2-ethylhexyl)oxy]-1-propanamine (1:1:1)
- Details on test material:
- purity > 99,3%
Constituent 1
Results and discussion
Water solubility
- Water solubility:
- 57 µg/L
- Temp.:
- 23 °C
- pH:
- ca. 7
- Details on results:
- Three measurements were performed with the method described above
Individual results:
Absorption Water Sol
(d = 10 cm) μg/l
a1 0.01494 50
a2 0.01674 55
a3 0.02046 67
Average 57
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information): insoluble (< 0.1 mg/L)
The water solubility ot the substance was determined as 57 µg/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 57 µg/L.
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