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EC number: 274-354-1 | CAS number: 70161-18-1
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 07 November 2018 to 04 December 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Specific details on test material used for the study:
- Test item: Acid Orange 94 Refined
Alternative name: Disodium 5, 5’-[(1-methylethylidene)bis(4,1-phenyleneoxysulphonyl-2,1-phenyleneazo)]bis[6-aminonaphthalene-1-sulphonate]
CAS number: 70161-18-1
EC number: 274-354-1
Intended use: Industrial chemical
Appearance: Reddish brown crystals
Storage conditions: Room temperature (10 – 30C), in the dark
Lot number: 8009
Expiry/Retest date: 31 December 2019
Purity: 97% - Key result
- Water solubility:
- >= 18 - <= 20 other: %w/w
- Conc. based on:
- test mat.
- Incubation duration:
- >= 24 - <= 72 h
- Temp.:
- 20 °C
- pH:
- >= 6.4 - <= 6.5
- Conclusions:
- The water solubility of the test item has been determined to be in the range of 18.0 to 20.0% w/w at 20.0 ± 0.5 °C.
- Executive summary:
The standard EC A.6/OECD 105 methodology, for the assessment of water solubility, was considered not to be applicable for this test item due to the expected high saturation level. A range of sample concentrations were prepared to visually assess the point at which saturation was reached. When the test item was above its saturation level, the test item formed a paste from which the removal of excess test item would not have been possible.
The water solubility of the test item has been determined to be in the range of 18.0 to 20.0% w/w at 20.0 ± 0.5 °C.
Reference
4.6.3.1 Preliminary Test
The sample concentrations, observations and solution pH are shown in the following table:
Table 11
Sample | Concentration (% w/w) | Observations | Solution pH |
1 | 5.25 | Dark red liquid with no excess test item | 6.6 |
2 | 10.3 | Dark red liquid with no excess test item | 6.5 |
3 | 20.2 | Dark red immobile smooth paste | n/a |
4 | 30.2 | Dark red immobile smooth and textured paste | n/a |
5 | 40.1 | Dark red immobile textured paste | n/a |
6 | 49.9 | Dark red, wet granules of test item | n/a |
Preliminary water solubility: In the range 10.3 to 20.2% w/w at 20.0 ± 0.5 °C.
4.6.3.2 Definitive Test
The sample concentrations, observations and solution pH are shown in the following table:
Table 12
Sample | Concentration (%w/w) | Observations | Solution pH |
1 |
12.0 |
Dark red liquid with no excess test item |
6.5 |
2 |
14.0 |
Dark red liquid with no excess test item |
6.5 |
3 |
16.0 |
Dark red liquid with no excess test item |
6.4 |
4 |
18.0 |
Dark red liquid with no excess test item |
6.4 |
5 |
20.0 |
Dark red viscous paste |
6.4 |
Water solubility: In the range 18.0 to 20.0% w/w at 20.0 ± 0.5 °C.
The standard EC A.6/OECD 105 methodology was considered not applicable to this test item due to the expected high saturation level. A range of sample concentrations were prepared to visually assess the point at which saturation was reached. Above the saturation level, the test item formed a paste from which removal of the excess test item would not have been possible.
Description of key information
The standard EC A.6/OECD 105 methodology was considered not applicable to this test item due to the expected high saturation level. A range of sample concentrations were prepared to visually assess the point at which saturation was reached. Above the saturation level, the test item formed a paste from which removal of the excess test item would not have been possible.
The water solubility of the test item has been determined to be in the range of 18.0 to 20.0% w/w at 20.0 ± 0.5 °C.
Key value for chemical safety assessment
- at the temperature of:
- 20 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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