Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 206-016-6 | CAS number: 287-92-3
- 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

PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Cyclopentane
- Type of composition:
- boundary composition of the substance
- State / form:
- liquid
- Reference substance:
- Cyclopentane
- Reference substance:
- Cyclopentane
- Reference substance:
- Cyclopentane
- Reference substance:
- Cyclopentane
- Reference substance:
- Cyclopentane
- Reference substance:
- Cyclopentane
- PBT status:
- the substance is not PBT / vPvB
- Justification:
8.1. Assessment of PBT/vPvB Properties - Comparison with the Criteria of Annex XIII
The criteria set out under REACH for determining whether a substance is PBT/vPvB are as follows:
Criterion
PBT criteria
vPvB criteria
P
Half-life (T½) > 60 d in marine water or
Half-life (T½) > 40 d in fresh or estuarine water or
Half-life (T½) > 180 d in marine sediment or Half-life (T½) > 120 d in fresh or estuarine water; sediment or
Half-life (T½) in soil > 120 d
Half-life (T½) > 60 d in marine fresh or estuarine water or
Half-life (T½) > 180 d in marine, fresh or estuarine water; sediment
Half-life (T½) > 180 d in soil
B
BCF > 2000 L/kg in fresh or marine aquatic species
BCF > 5000 L/kg
T
Chronic NOEC < 0.01 mg/l for marine or freshwater organisms, or
Substance is classified as carcinogenic (category 1 or 2), mutagenic (category 1 or 2), or toxic for reproduction (category 1, 2 or 3) or
There is other evidence of chronic toxicity, as identified by the classifications: T, R48, or Xn, R48 according to Directive 67/548/EEC.
Not applicable
Note: (a) BCF is bioconcentration factor, NOEC is no-observed effect concentration and CMR is a substance classified as carcinogenic, mutagenic or toxic for reproduction
(b) For marine environmental risk assessment, half-life data in freshwater sediment can be overruled by data obtained under marine conditions
(c) Substances are classified when they fulfil the criteria for all three inherent properties for P, B and T. However, there is certain flexibility, for instance in cases where one criterion is marginally not fulfilled but the others are exceeded considerably.
These criteria are the definitive criteria for PBT assessment. However, the first step in the PBT assessment is to conduct a screening assessment using screening criteria. Once this screening step is conducted evaluation against the definitive criteria listed above can be conducted using measured data is appropriate. If a substance is confirmed to be PBT/vPvB a third step is required to estimate the amounts of substance released to the different environmental compartments from all activities and uses will need to be reported in section 8.2 of this report.
8.1.1. Persistence Assessment
Based on the available measured data, cyclopentane is not biodegradable. Therefore, based on initial persistence screening the substance could be considered to meet Persistent (P) or very Persistent (vP) criteria. However based on the analysis by CONCAWE (CONCAWE 2010) this substance is not considered to meet the criteria for persistant.
8.1.2. Bioaccumulation Assessment
As a screening criteria, it has been established that if the log Kow of the substance is lower than 4.5 it indicates that the substance will not fulfill the bioaccumulative (B) or very bioaccumulative (vB) criteria.The calculated BCF of 70.8 indicates that cyclopentane does not greatly bioaccumulate in the lipids of ecological receptors. The log Kow of 3 was used to calculate the BC. Therefore cyclopentane is not expected to fulfill the bioaccumulative (B) or very bioaccumulative (vB) criteria.
8.1.3. Toxicity Assessment
The substance cyclopentane is not identified as PB or vPvB, therefore a toxicity assessment is not needed
Reference
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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