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EC number: 269-944-0 | CAS number: 68391-32-2
- 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:
- 2016-11-08 – 2016-11-22
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- Experimental result performed using standard methods of analysis
- Qualifier:
- according to guideline
- Guideline:
- other: spectrophotometric method
- Principles of method if other than guideline:
- The water solubility determination of test substance (8-((4-Amino-3-nitrophenyl)azo)-7-hydroxy-2-naphthyl)trimethylamm- onium chloride was done as per the spectrophotometric method
- GLP compliance:
- no
- Type of method:
- other: spectrophotometric method
- Specific details on test material used for the study:
- - Name of test material:(8-((4-Amino-3-nitrophenyl)azo)-7-hydroxy-2-naphthyl)trimethylamm- onium chloride
- Molecular formula: C19H20N5O3Cl
- Molecular weight: 401.852 g/mol
- Smiles notation: [N+](c1cc(\N=N\c2c3cc([N+](C)(C)C)ccc3ccc2O)ccc1N)([O-])=O.[ClH-]
- Substance type: Organic
- Physical state: Solid - Key result
- Water solubility:
- 7 141.2 mg/L
- Conc. based on:
- test mat.
- Temp.:
- 28 °C
- Remarks on result:
- other: other details not available
- Conclusions:
- The water solubility determination of test item [8-[(4-amino-3-nitrophenyl)azo]-7-hydroxy-2-naphthyl]trimethylammonium chloride;CAS No.68391-32-2 was done by spectrophotometric method. The water solubility was determined to be 7141.2 mg/L at 28°C.
- Executive summary:
The water solubility determination of test item [8-[(4-amino-3-nitrophenyl)azo]-7-hydroxy-2-naphthyl]trimethylammonium chloride;CAS No.68391-32-2 was done by spectrophotometric method. The water solubility was determined to be 7141.2 mg/L at 28°C.
Reference
Sample stirring |
Concentration obtained on the basis of standard curve |
Dilution factor |
Solubility value obtained (mg/L) |
24 hour |
18.405 mg/L |
400 |
7362 mg/L |
48 hour |
17.066 mg/L |
400 |
6826.4 mg/L |
72 hour |
18.640 mg/L |
400 |
7456 mg/L |
Description of key information
The water solubility determination of test item [8-[(4-amino-3-nitrophenyl)azo]-7-hydroxy-2-naphthyl]trimethylammonium chloride;CAS No.68391-32-2 was done by spectrophotometric method. The water solubility was determined to be 7141.2 mg/L at 28°C.Based on the above value,it can be concluded that the test chemical is very soluble in water
Key value for chemical safety assessment
- Water solubility:
- 7 141.2 mg/L
- at the temperature of:
- 28 °C
Additional information
The water solubility determination of test item [8-[(4-amino-3-nitrophenyl)azo]-7-hydroxy-2-naphthyl]trimethylammonium chloride;CAS No.68391-32-2 was done by spectrophotometric method. The water solubility was determined to be 7141.2 mg/L at 28°C.Based on the above value,it can be concluded that the test chemical is very soluble in water
Other supporting studies from review article also suggests that the water solubility value of chemical (8-((4-Amino-3-nitrophenyl)azo)-7-hydroxy-2-naphthyl)trimethylamm- onium chloride was determined to be in the range of 10000 mg/L to 100000 mg/L at room temperature.
As the data from lab has K1 reliability and the test was performed using standard methods of analysis which has the value of water solubility as 7141.2 mg/L at 28 degree C ,thus considered as key study for the chemical safety assessment
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