Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.014 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.143 mg/L

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.205 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:
0.426 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

Classification related key information

Log Kow:           3.72 (EU method A.8)

Water solubility: 264 mg/L (EU method A.6)

Biodegradation:  79 -82 % in 28 days (OECD 301B): readily biodegradable

BCF:                  WoE approach: not bioaccumulative 

 

Aquatic acute toxicity:

For fish: LC50 (96h) = 17.8 mg/L (OECD 203)

For algae: EC50 (72h) = 14.3 mg/L (OECD 201)

For crustacea: EC50 (48h) = 24.0 mg/L (OECD 202)

 

Aquatic chronic toxicity:

For fish: NOEC(28d): no data

For algae: EC10(72h) = 10.4 mg/L (OECD 201)

For crustacea: NOEC(21d): no data

 

Classification according to CLP

Based on the data above, Triisobutyl phosphate (CAS 126-71-6, TiBP) is readily biodegradable. Acute aquatic toxicity is observed to be in the range of 10-100 mg/L. Valid chronic data are not available. Therefore, TiBP does not need to be classified and labelled for the environment according to the 2nd ATP of the Regulation (EC) No. 1272/2008 (CLP).