Registration Dossier
Registration Dossier
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 229-764-5 | CAS number: 6712-98-7
- 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 microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
In a GLP study conducted according to OECD guideline 209, a 3-hr NOEC of 4820 mg/L (highest tested concentration) was determined for DEIPA in a respiratory inhibition test with municipal activated sludge (Gonsoir and Manor, 1999).
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 4 820 mg/L
Additional information
In a GLP study conducted according to OECD guideline 209, the potential for DEIPA to inhibit the respiration of activated sludge was assessed. The effect of DEIPA was evaluated by measuring the respiratory rate of activated sludge fed with synthetic sewage in the presence of the test solution at nominal concentrations of 300, 600, 1205, 2410 and 4820 mg/L. The test conditions were validated with the use of a reference substance (3,5-dichlorophenol) and negative controls (no test substance). Following 3 hours of aeration, the dissolved oxygen concentration of each reaction mixture was measured over a period of up to 10 minutes. The respiratory rate (mg O2/L/hr) was subsequently calculated and presented as a percentage of the mean of the two negative control respiration rates. A 3-hr NOEC of 4820 mg/L was determined as no respiratory inhibition was observed at any concentration (Gonsoir and Manor, 1999).
In summarising this study, NICNAS (2009) concluded that DEIPA was not acutely harmful to sludge microorganisms.
In addition, in the ready biodegradability test, duplicate toxicity control reactions containing a mixture of benzoate and DEIPA showed no evidence
of inhibition of the test material to the activated sludge organisms (Goodwin, 1999).
References
NICNAS (2009). Australian National Industrial Chemicals Notification and Assessment Scheme. Full Public Report. DEIPA. File No: STD/1344. December 2009.http://www.nicnas.gov.au/publications/CAR/new/Std/StdFULLR/std1000FR/std1344FR.pdf
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
