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Diss Factsheets
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EC number: 941-992-3 | CAS number: -
- 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
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- no emission to STP expected
Sediment (freshwater)
- Hazard assessment conclusion:
- no exposure of sediment expected
Sediment (marine water)
- Hazard assessment conclusion:
- no exposure of sediment expected
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no exposure of soil expected
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- insufficient hazard data available (further information necessary)
Additional information
The chemical intermediate "Dioxy Cuite Brute 58%" named "DCB" is a mixture of molecules and mainly composed by 4,4'-sulfonyldiphenol (BPS) and other sulfonated phenol sodium salts (from phenol sulfonic acid and phenol: see section 1.2 for the detailed composition).
DCB is soluble in water and a little amount of solvent. The salified form increases the solubility of the molecules compared to the acid form.
Approximately the 14% of the organic part of the mixture is the salified form of the phenol sulfonic acid, the benzenesulfonic acid, 4-hydroxy-, sodium salt (1:1), CAS 825-90-1, that in its acid form is a very acidic substance.
In this case, a category approach based on the salified sulfonic acids (hydrotropes) can be taken into account for the hazard evaluation of the whole intermediate mixture DCB 58%.
The specific cation is not expected to have an appreciable effect on fate, ecotoxicity or mammalian toxicity and therefore, the dataset for the entire hydrotropes category can be applied broadly.
The 2,4'-BPS 5397-34-2 Phenol, 2-[(4-hydroxyphenyl) sulfonyl]- is present at 6%.
Phenol is present at 1.8%.
Considerations regarding the conclusion of every endpoint is reported in the corresponding IUCLID section.
Conclusion on classification
In order to classify the whole mixture for the environmental toxicity, the available classification and the results of the reported studies of every known component has been taken into account.
4,4'-sulfonyldiphenol (BPS): non classified
Benzenesulfonic acid, 4-hydroxy-, sodium salt (1:1)- hydrotropes, sodium xylene sulphonate (category approach): non classified
2,4'-sulfonyldiphenol: H314 (C&L ECHA Inventory): non classified
Phenol: H411
Approximately 48% of the organic part of the intermediate under registration is composed by BPS.
Approximately the 14% of the organic part of the mixture is the salified form of the phenol sulfonic acid, benzenesulfonic acid, 4-hydroxy-, sodium salt (1:1).
Actually, this substance is completely salified, and therefore a category approach based on the hydrotropes should be taken into account for a more realistic classification of the whole intermediate mixture DCB, that it is in the neutralized form.
2,4'-sulfonyldiphenol is present at 6%, but no data on its toxicity are available (non classified).
Phenol, classified for long-term ecotoxicity, is however present in a low concentration (1.8 %) and for the evaluation of chronic ecotoxicity, the presence >= 25 %, shall be taken into account.
No data on biodegrability of the whole mixture, which makes up the intermediate to be registered, DCB, is available.
The whole mixture comprising the intermediate to be registered, DCB, presents no data available on biodegradability.
In conclusion, the chemical intermediate DCB 58% is not classified for the environment. In addition, no exposure of the aquatic environment, sediment, soil and air is expected.
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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