Registration Dossier
Registration Dossier
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EC number: 201-114-5 | CAS number: 78-40-0
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
Description of key information
A long-term study in terrestrial plants, althought having some restrictions can be used for assessment. This study yields a NOEC of 2 mg/kg wwt.. Recalcution into dry weight and normalisation with the organic matter content (1.5%) according to REACH Guidance Document R10 gives a NOEC of 4 mg/kg d.w..
Key value for chemical safety assessment
- Long-term EC10, LC10 or NOEC for terrestrial plants:
- 4 mg/kg soil dw
Additional information
The phytotoxicity of triethylphosphate was investigated following foliar or soil application to sorghum-sudangrass, tomato or glossy privet (vegetative growth). The effects on seedling emergence were also assessed on sorghum-sudangrass, tomato and cucumber. Evidence of phytotoxicity (growth and seedling emergence) was seen in this study only at the highest application rate of 40000 mg/m2 (soil or foliar). No effects were seen at an application rate of 400 mg/m2.
This study has some limitations (the number of species and endpoints is low). Additionally a high spacing factor of 100 was used. Nevertheless a clear NOEC can be derived.
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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