Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 800-766-3 | CAS number: 1424148-97-9
Endpoint summary
Administrative data
Description of key information
Additional information
REGISTRATION SUBSTANCE AND READ-ACROSS
The registration substance Penta-PSCA sodium and triethanolammonium salts, CAS No 1424148-97-9 is the salt of the corresponding acid Penta-PSCA, CAS No. 1424148-94-6. In aqueous medium the acid and the corresponding salt co-exist and their ratio to each other is determined by the pKa of 4.7 and the pH in the aqueous medium. For example at pH7 >99% is salt. This composition exists irrespective if the acid or the salt was introduced first in the aqueous medium. This means that substance data generated in aqueous medium can be used for the acid Penta-PSCA as well as for the sodium and triethanolammonium salt.
In the table below the available acute and chronic ecotoxicity data for all three trophic levels are given:
| Test | Guideline | Endpoint | Value |
| (mg/L) | |||
| Acute Fish | 203 | LC50 (96h) | 100 |
| Acute Daphnia | 202 | EC50 (48h) | 2.6 |
| Algae | 201 | ErC50 (72h) | 38 |
| Microorganisms | 209 | NOEC (3h) | 1000 |
| Chronic Daphnia | 202 | EC10 repro(21d) | 1.7 |
| Algae | 201 | ErC10 (72h) | 9.6 |
All acute and chronic freshwater test results are > 1 mg/L.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
