Registration Dossier
Registration Dossier
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EC number: 210-036-0 | CAS number: 603-35-0
Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
No data available.
The equilibrium partitioning method has been used for assessing the hazard to sediment and soil organisms.
Key value for chemical safety assessment
Additional information
No studies on terrestrial organisms are available for triphenylphosphine.
In Annex X section 9.4 of Regulation (EC) No 1907/2006, it is laid down that tests on terrestrial organisms shall be proposed by the registrant if the chemical safety assessment indicates the need to investigate further the effects on terrestrial organisms. The choice of the appropriate tests depends on the outcome of the chemical safety assessment. In particular for substances that have a high potential to adsorb to soil or that are very persistent, the registrant shall consider long-term toxicity testing instead of short-term. According to Annex X section 9.4 of Regulation (EC) No 1907/2006, those studies do not need to be conducted if direct or indirect exposure of the soil compartment is unlikely.
At environmentally relevant low concentrations, triphenylphosphine (TPP) will be oxidized to triphenylphosphine oxide (TPPO).
Triphenylphosphine oxide has a low potential for adsorption or bioaccumulation. Distribution modelling clearly shows the main target for environmental distribution will be water (see IUCLID chapter 5.4.3). Therefore, exposure of terrestrial organisms is unlikely. In addition, the substance is not a PBT or vPvB substance. Consequently, no test on soil organisms is performed.
The equilibrium partitioning method has been used to assess the hazard potential for soil organisms.
A study to toxicity to birds is available for the oxidation product triphenylphosphine oxide. The LD50 oral for hen is 7376 mg/kg bw.
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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