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EC number: 277-759-1 | CAS number: 74196-16-0
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- OECD 105
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Type of method:
- flask method
Test material
- Reference substance name:
- Trisodium bis[4-amino-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-1-sulphonato(3-)]chromate(3-)
- EC Number:
- 277-759-1
- EC Name:
- Trisodium bis[4-amino-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-1-sulphonato(3-)]chromate(3-)
- Cas Number:
- 74196-16-0
- Molecular formula:
- C32H16CrN10O16S2.3Na
- IUPAC Name:
- trisodium bis[4-amino-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-1-sulphonato(3-)]chromate(3-)
- Reference substance name:
- Sodium sulphate
- EC Number:
- 231-820-9
- EC Name:
- Sodium sulphate
- Cas Number:
- 7757-82-6
- Molecular formula:
- H2O4S.2Na
- IUPAC Name:
- disodium sulfate
Constituent 1
additive 1
Results and discussion
Water solubility
- Key result
- Water solubility:
- 3.5 g/L
- Conc. based on:
- act. ingr.
- Remarks:
- dye contained in desensitized mixture
- Temp.:
- 20 °C
- pH:
- 7.8
- Remarks on result:
- other: mean of 3 measurements
- Remarks:
- the value refers to the colouring agent
Any other information on results incl. tables
Table 1: results of preliminary test
water for 0.1 g test item [mL] |
0.1 |
0.5 |
1 |
2 |
10 |
100 |
150 |
approximate solubility [g/L] |
> 1000 |
200 -1000 |
100 - 200 |
50 - 100 |
10 - 50 |
1 – 10 |
< 1 |
visual evaluation |
paste |
not soluble |
not soluble |
not soluble |
not soluble |
soluble |
soluble |
Table 2: results of flask method
Flask no |
Equilibration time at 20 °C [h] |
pH of aqueous solution |
Test substance content [g/L] |
1 |
24 |
7.7 |
3.3 |
2 |
48 |
7.8 |
3.6 |
3 |
72 |
7.9 |
3.5 |
mean |
|
|
3.5 |
Applicant's summary and conclusion
- Conclusions:
- the water solubility of the dye, CAS 74196-16-0, contained in the desensitized mixture, is 3.5 g/L
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