Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

Link to relevant study record(s)

Description of key information

Toxicokinetic data are taken from published authoritative reviews and published data

Key value for chemical safety assessment

Bioaccumulation potential:
no bioaccumulation potential
Absorption rate - oral (%):
100
Absorption rate - inhalation (%):
100

Additional information

Short-term studies on humans and animals demonstrate that perchlorate appears to be readily absorbed by the digestive system after oral exposure. Maximum blood levels appear within a few hours after ingestion. Data also suggest the absorption of inhaled perchlorate but dermal absorption is likley to be very low. Perchlorate is rapidly taken up into the thyroid gland, by an active transport mechanism (displacing iodide), and reaches a maximum level in the thyroid in approximately 4 hours in rats. Elimination of perchlorate from the thyroid is also rapid; half-lives of 10–20 hours have been estimated in rats. Perchlorate does not appear to be modified in the body, either by degradation or covalent binding. Perchlorate is rapidly eliminated from the body in the urine with half-lives of approximately 8–12 hours in humans and 10– 20 hours in rats.