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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
0.042 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.42 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.004 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.019 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:
0.256 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Conclusion on classification

Degradation

Biodegradation: Not readily biodegradable: 41% (O2 consumption) after 28 d (OECD 301C)

Bioaccumulation

Log Kow: 1.28 (OECD 117)

Aquatic toxicity

96 h, LC50 (Oncorhynchus mykiss): 42 mg/L (nominal)

48 h, EC50 (Daphnia magna): > 100 mg/L (nominal)

72 h, ErC50 (Pseudokirchnerialla subcapitata): > 100 mg/L (nominal)

72 h, NOEC (Pseudokirchnerialla subcapitata):≥100 mg/L (nominal)

 

Classification according to CLP

Based on the data above, the acute aquatic toxicity L(E)C50 is > 1 mg/L. 2-(1-methylethoxy)ethyl acetate does not need to be classified and labeled as acute aquatic hazard according to the 2nd ATP of the Regulation (EC) No. 1272/2008 (CLP).

Valid chronic aquatic toxicity data are not available. Nevertheless, 2-(1-methylethoxy)ethyl acetate is considered to have a low potential for bioaccumulation but not to be rapidly degradable. Based on the LC50 (96 h) of 42 mg/L for Oncorhynchus mykiss, 2-(1-methylethoxy)ethyl acetate needs to be classified and labeled as environmental hazard Chronic Cat. 3 according to the 2nd ATP of the Regulation (EC) No. 1272/2008 (CLP).

Classification according to DSD

Based on the data above, 2-(1-methylethoxy)ethyl acetate is considered to be not rapidly degradable and has low potential for bioaccumulation. The acute aquatic toxicity LC50 (96 h) is 42 mg/L for Oncorhynchus mykiss. Thus, 2-(1-methylethoxy)ethyl acetate needs to be classified and labeled as environmental hazard R52/53 according to Directive 67/548/EEC.