Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.039 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.39 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:
1.81 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.018 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:
0.019 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: 82% (CO2 evolution) after 28 d (OECD 301B)

Bioaccumulation

Log Kow: 1.31 (QSAR estimation)

Aquatic toxicity

96 h, LC50 (Oncorhynchus mykiss): 39 mg/L (nominal)

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

72 h, ErC50 (Pseudokirchnerialla subcapitata): > 100 mg/L (nominal); > 60 mg/L (geometric mean)

Non-classification according to CLP

Chronic data are not available for 1,3-butylene diacetate. However, based on the data above, 1,3-butylene diacetate is considered to be rapidly degradable and has a low potential for bioaccumulation. The acute toxicity L(E)C50 values are all > 1 mg/L for fish, aquatic invertebrates and algae. Thus, 1,3-butylene diacetate does not need to be classified and labeled as environmental hazard according to the 2nd ATP of Regulation (EC) No. 1272/2008 (CLP).

Non-classification according to DSD/DPD

Based on the data above, 1,3-butylene diacetate is considered to be rapidly degradable and has low potential for bioaccumulation. The acute aquatic toxicity L(E)C50 values are all > 1 mg/L for fish, aquatic invertebrates and algae. Thus, 1,3-butylene diacetate does not need to be classified and labeled as environmental hazard according to Directive 67/548/EEC.