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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

STP

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

Sediment (freshwater)

Hazard assessment conclusion:
no data available: testing technically not feasible

Sediment (marine water)

Hazard assessment conclusion:
no data available: testing technically not feasible

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no data available: testing technically not feasible

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Given the rapid hydrolysis and extremely low estimated water solubility level for this substance it is not possible to conduct aquatic toxicity studies on it. The primary hydrolysis product, isodecyl alcohol, is separately registered and PNECs for it were used in this assessment. Since the PNECs for the hydrolysis products are orders of magnitude higher than the water solubility limit of triisodecyl phosphite, the conclusion is that the substance is not toxic to aquatic life.

Substance: 271-234-0 / 68526-85-2 / Isodecanol

 

REACH registration number for Exxal 10 by ExxonMobil :

01-2119449807-26-0000

 

6 Ecotoxicological Information

Endpoint summary: Ecotoxicological Information/Isodecanol/68526-85-2

 

PNEC aqua (freshwater): 0.4 mg/L

assessment factor - 1

Extrapolation method: assessment factor

Simple non-polar narcotic mixture of alcohol isomers. 3 long-term endpoints.

 

PNEC aqua (marine waters): 0.4 mg/L

Assessment factor - 1

Extrapolation method: assessment factor

Simple non-polar narcotic mixture of alcohol isomers. 3 long-term endpoints.

 

PNEC aqua (intermittent releases): 2.78 mg/L

Assessment factor - 1

Extrapolation method: assessment factor

Simple non-polar narcotic mixture of alcohol isomers. 3 acute endpoints.

 

PNEC STP: 4.3 mg/L

Assessment factor - 10

Extrapolation method

assessment factor

The PNEC for sewage treatment plant was determined using the NOEC for an STP inoculum from a ready

biodegradation test.

 

PNEC sediment: 117 mg/kg sediment dw

Assessment factor: 1

Extrapolation method: assessment factor

 

 

Environmental classification justification

 Experimental sediment toxicity data for isodecanol are not available. PNECs for the sediment compartment were

derived based on the results from three long-term endpoints representing three trophic levels, as well as the

Equilibrium Partitioning Method.

PNEC soil: 95 mg/kg soil dw

Assessment factor: 1

Extrapolation method: assessment factor

Isodecanol is expected to have a low potential to produce toxicity in terrestrial species (earthworm and plants),

based on (Q)SAR predictions and the Equilibrium Partitioning Method.

 

PNEC oral in 22.22 kg/kg food

Assessment factor: 90

Based on a 13 week rat NOAEL of 100 mg/kg/d with iso-undecanol. Conversion factor for rats used was 20

bw/dwi. Assessment factor for 90 day study used (90). Results have been reported in mg/kg food.

Secondary poisoning for alcohols, C9 -11 -iso, C10 -richisnot expected based on results from

bioconcentration studies asdescribed in Section 4.3.1.2and evidence of biotransformation and

metabolism as reported by deWolf and Parkerton (1999).

Alcohols, C9 -11 -iso, C10 -richis not classified and labeled for the environment based on available toxicity data

and ready biodegradability.

 

Conclusion on classification

Substance is not toxic to the aquatic environment based on its very low water solubility and the fact that resulting concentrations of hydrolysis products (isodecanol and phosphorus acid) are orders of magnitude lower than toxicity values for the hydrolysis products.