Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite
- Type of composition:
- legal entity composition of the substance
- State / form:
- liquid
- Related composition:
- Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite
- Reference substance:
- Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite
- Reference substance:
- Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite
- Name:
- Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite
- Type of composition:
- boundary composition of the substance
- State / form:
- liquid
- Reference substance:
- Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite
- Reference substance:
- Reaction mass of dodecane-1-thiol and tridodecyl trithiophosphite
- PBT status:
- the substance is not PBT / vPvB
- Justification:
According to Annex XIII of the REACH Regulation (EC n. 1907/2006), a substance is PBT if it fulfills all three of the following criteria.
1) Persistence
A substance fulfills the persistence criterion (P) when:
– the half-life in marine water is higher than 60 days, or
– the half-life in fresh- or estuarine water is higher than 40 days, or
– the half-life in marine sediment is higher than 180 days, or
– the half-life in fresh or estuarine water sediment is higher than 120 days, or
– the half-life in soil is higher than 120 days.
The assessment of the persistency in the environment shall be based on available half-life data collected under the adequate conditions, which shall be described by the registrant.
2) Bioaccumulation
A substance fulfills the bioaccumulation criterion (B) when:
– the bioconcentration factor (BCF) is higher than 2000.
The assessment of bioaccumulation shall be based on measured data on bioconcentration in aquatic species. Data from freshwater as well as marine water species can be used.
3) Toxicity
A substance fulfills the toxicity criterion (T) when:
– the long-term no-observed effect concentration (NOEC) for marine or freshwater organisms is less than 0.01 mg/l, or
– the 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.
The substance is not ready-biodegradable and considering its high predicted value for log Kow (>10) the potential bioaccumulation of the substance can not be excluded.
The substance is very difficult to detect by HPLC because it has no chromophore and it is low water soluble so the experimental tests for BCF and logKow are difficult to perform.
The substance is not CMR and it is not toxic.
Anyway the substance does not fulfill the criteria for PBT.
According to Annex XIII of the REACH Regulation (1907/2006), a substance is vPvB if it fulfils the following criteria.
1)Persistence
A substance fulfils the very persistence criterion (vP) when:
- the half-life in marine, fresh- or estuarine water is higher than 60 days, or
- the half-life in marine, fresh or estuarine water sediment is higher than 180 days, or
- the half-life in soil is higher than 180.
2)Bioaccumulation
A substance fulfils the very persistence criterion (vP) when:
- the bioconcentration factor is greater than 5000.
Base on the available information the potential vPvB of the substance can not be excluded even though the experimental investigation of these alerts is difficult considering that the substance is very difficult to detect by HPLC because it has no chromophore and it is low water soluble. However the substance contains no halogenated substituent and very persistent property is unlikely.
Referenceopen allclose all
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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