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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
2 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.79 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.2 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
0.699 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
46.6 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
4.66 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
11.5 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

PNECs were derived from the study with the most sensitive species available for each compartment/endpoint.

Conclusion on classification

Acute toxicity:

Based on the results obtained in aquatic toxicity studies, MTHPA was not classified and labelled according to Directive 67/548/EEC (DSD) and Annex VI of Regulation 1272/2008/EC (CLP).

Chronic toxicity:

Based on the results obtained in long-term aquatic toxicity studies, MTHPA was not classified and labelled according to Directive 67/548/EEC (DSD) and Annex VI of Regulation 1272/2008/EC (CLP).

Overview of Results used for Classification and Labelling:

Fish, short-term, freshwater: LC50 (96 h)> 100 mg/L (Anonymous, 1997)

Fish, long-term, freshwater: NOEC(14 d) = 100 mg/L (Anonymous, 1997)

Daphnia magna, short-term, freshwater: LC50 (48 h) = 130 mg/L (Anonymous, 1997)

Algae, freshwater: LC50 (72 h) = 68 mg/L (Anonymous, 1997)