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REACH

Phosphoric acid, isononyl ester

EC number: 284-851-5 | CAS number: 84988-61-4

Life Cycle description
Uses advised against

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

72h EL50 (growth rate) = 49 mg/L, 72h NOELr (growth rate) = 25 mg/L (Pseudokirchnerella subcapitata); Vryenhoef & Mullee (2011); OECD 201

Key value for chemical safety assessment

EC50 for freshwater algae:: 49 mg/L
EC50 for marine water algae:: 15 mg/L

Additional information

No reliable data are available for the aquatic toxicity of isononyl phosphate to algae. However, reliable data are available for the analogue,Phosphoric acid, 2-ethylhexyl ester (CAS 12645 -31 -7) and are included in the dossier.

One reliable key study, Vryenhoef & Mullee (2011), is submitted for the toxicity to aquatic algae endpoint, one for a freshwater species . The study was conducted using a standard approach for testing poorly soluble, multi-component substances, the preparation of a water accommodated fraction (WAF). As such, the effect values are presented as loading rates (e.g. EL₅₀or NOELr), and not measured aqueous concentrations. The 72h EL50 (growth rate) = 49 mg/L, 72h NOELr (growth rate) = 25 mg/L for Pseudokirchnerella subcapitata.

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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