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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.074 mg/L
Assessment factor:
1 000
PNEC freshwater (intermittent releases):
0.74 mg/L

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.011 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:
0.038 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

The following reliable data is available for environmental classification of titanium tetra(octanolate), branched and linear:

Acute Aquatic Toxicity:

Short-term toxicity to fish:

  • 96-h LC50 (mortality) to Pimephales promelas, 14 mg/L based on nominal concentrations (read-across from Exxal 8; Booke et al 1988)

Short term toxicity to invertebrates:

  • 48-hour EC50 (immobilisation) to Daphnia magna, 41 mg octyl alcohol isomers/l (95 % CI, 37 and 49 mg/l) based on a TWA concentrations of the hydrolysis product (OECD 202; Tobor-Kaplon M.A. 2013).
  • 48-hour EC50 (immobilisation) to Daphnia magna, 74 mg/l based on estimated test item concentrations (OECD 202; Tobor-Kaplon M.A. 2013).

Toxicity to algae:

  • The 72h-EC50 (growth rate) to Pseudokirchnerella subcapitata, > 20 mg octyl alcohol isomers/l based on a TWA concentrations of the hydrolysis product (OECD 202; Tobor-Kaplon M.A. 2013).
  • The 72h-EC50 (growth rate) to Pseudokirchnerella subcapitata, > 100 mg/l based on estimated test item concentrations (OECD 202; Tobor-Kaplon M.A. 2013).
  • The 72h-NOEC (growth rate) to Pseudokirchnerella subcapitata, 6.7 mg octyl alcohol isomers/l based on a TWA concentrations of the hydrolysis product (OECD 202; Tobor-Kaplon M.A. 2013).

Conclusion: No acute aquatic toxicity as the lowest toxicity value for the substance itself is 74 mg/l (> 1 mg/l).

Chronic aquatic toxicity:

Degradation:

Abiotic degradation (hydrolysis): Hydrolytically unstable, half-life less than 10 minutes (OECD 111)

Main organic decomposition product (alcohols, C7-9-iso, C8–rich; Exxal 8) is readily biodegradable (> 80 % at 28-d biodegradation, Exxon Mobil 1997). The aquatic toxicity values (EC50/LC50) of the main degradation product are similar to the target substance.

Conclusion: rapidly degradable.

Bioaccumulation:

Log Kow for the main degradation product (Exxal 8) is 3.2 (OECD 117). Not possible to determine for the target substance because of rapid hydrolysis.

BCF (Oncorhynchus mykiss) after 16 days of exposure for the main decomposition product (Exxal 8) is 15.2 L/kg (OECD 305 E). Not possible to determine for the target substance because of rapid hydrolysis.

Conclusion: No chronic aquatic toxicity as the lowest sub-chronic toxicity value is 6.7 mg/l (NOEC algae), substance is rapidly degradable, and the degradation products have low potential for bioconcentration and bioaccumulation.

Environmental classification:

In accordance with EC Regulation 1272/2008 (CLP):

Not classified as hazardous

In accordance with DSD (Directive 67/548/EEC):

Not classified as hazardous

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