Reaction products of 3-aminomethyl-3,5,5-trimethylcyclohexylamine and m-phenylenebis(methylamine) with 2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)]bisoxirane

Ecotoxicological Summary

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:

PNEC aqua (freshwater)

PNEC value:

0.002 mg/L

Assessment factor:

1 000

Extrapolation method:

assessment factor

PNEC freshwater (intermittent releases):

0.016 mg/L

Marine water

Hazard assessment conclusion:

PNEC aqua (marine water)

PNEC value:

0 mg/L

Assessment factor:

10 000

Extrapolation method:

assessment factor

STP

Hazard assessment conclusion:

PNEC STP

PNEC value:

3.1 mg/L

Assessment factor:

10

Extrapolation method:

assessment factor

Sediment (freshwater)

Hazard assessment conclusion:

PNEC sediment (freshwater)

PNEC value:

10.5 mg/kg sediment dw

Extrapolation method:

equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:

PNEC sediment (marine water)

PNEC value:

1.05 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:

2.1 mg/kg soil dw

Extrapolation method:

equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:

no potential for bioaccumulation

Additional information

PNEC freshwater sediment:

K_(susp-water) = 1650

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6  

 

PNEC_freshwater sediment

= (K_(susp-water) / RHO_(susp)) * PNEC_water * 1000

= (1650/1150) * 0.00159 * 1000

= 2.28 mg/kg wwt

= 10.5 mg/kg dwt

 

PNEC marine water sediment:

K_(susp-water) = 1650

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

 

PNEC_marine water sediment

= (K_(susp-water) / RHO_(susp)) * PNEC_marine water * 1000

= (1650/1150) * 0.000159 * 1000

= 0.228 mg/kg wwt

= 1.05 mg/kg dwt

 

PNEC soil:

K_(soil-water) = 1980

RHO_(soil) = 1700

Conversion factor (wwt -> dwt): 1.13

 

PNEC_soil

= (K_(soil-water) / RHO_(soil)) * PNEC_water * 1000

= (1980/1700) * 0.00159 * 1000

= 1.85 mg/kg wwt

= 2.1 mg/kg dwt

Conclusion on classification

Acute toxicity:

The Daphnia is the most sensitive species with a EC50 value of 1.59 mg/L. According to Regulation (EC) No 1272/2008 (CLP, GHS) the test substance has not to be classified regarding short-term (acute) aquatic toxicity to the environment as the lowest LC50 value is above 1 mg/L.

Chronic toxicity:

The Daphnia is the most sensitive species with an EC50 value of 1.59 mg/L. For derivation of classification and labelling also the algae 72-h EC10 value based on growth rate was determined as 1.55 mg/L, has to be taken into account. In biodegradation studies on the symmetrical epoxy amine adducts, according to EU method C.4–E, no biodegradation was observed. Based on the read-across approach the test item was considered not ready biodegradable. As a result the substance has to be classified as long-term (chronic) aquatic toxic cat 2, H411 according to Regulation (EC) No 1272/2008 (CLP/GHS), as amended for the tenth time in Regulation (EC) No 2017/776.