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Diss Factsheets
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EC number: 942-732-1 | 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
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The 72 hour EC50 (growth rate) Ethanolamine Salt of Aryl Sulphonoamido Carboxylic Acid (30%) was 19.2 mg/L. There was clear evidence of a dose response in this study. The tested solution contains30% of the registered substance. Assuming a linear dose-response relationship, 30% of 19.2 mg/L = 5.76 mg/L. Therefore the EC50 for the registered substance is proposed to be 5.76 mg/L. The substance is not considered to be toxic to aquatic algae. The EC50 of monoethanolamine that makes 50% of the registered substance is 393.42 showing that the substance pose no acute toxicity hazard to Algae.
Key value for chemical safety assessment
- EC50 for marine water algae:
- 5.76 mg/L
- EC10 or NOEC for marine water algae:
- 0.96 mg/L
Additional information
The toxicity of the test material (a 30% solution containing the registered substance) to aquatic algae was determined in accordance with the EN ISO Guideline for Testing of Chemicals 10253:1998. The study was conducted using the marine algaeSkeletonema costatum. Algae was exposed to the test material over a range of 1, 3.2, 10, 32 and 100 mg/L in seawater. The exposed algae was monitored over a period of 72 hours to determine the concentration of test material which inhibited algal growth rate by 50% i.e. the EC50. The 72 hour EC50 (growth rate) of the test material was 19.23 mg/L. The solution contains 30% of the registered substance. Assuming a linear dose-response relationship, 30% of 19.23 mg/L = 5.76mg/L. Therefore the EC50 for the registered substance is proposed to be 5.76 mg/l. The registered substance is not considered to be toxic to aquatic algae. An equivalent study on monoethanolamine showed and EC50 of 393.42. Monoethanolamine constitute 50% of the registered reaction mass; therefore consideration of its toxicity is justified. However, the EC50 showed that Monoethanolamine is not considered toxic to aquatic algae and is also less toxic than Ethanolamine Salt of Aryl Sulphonoamido Carboxylic Acid.
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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