Alcohols, C12-14, ethoxylated, sulfates, sodium salts

Ecotoxicological Summary

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:

PNEC aqua (freshwater)

PNEC value:

0.24 mg/L

Assessment factor:

5

PNEC freshwater (intermittent releases):

0.071 mg/L

Marine water

Hazard assessment conclusion:

PNEC aqua (marine water)

PNEC value:

0.024 mg/L

Assessment factor:

50

STP

Hazard assessment conclusion:

PNEC STP

PNEC value:

10 g/L

Assessment factor:

1

Extrapolation method:

assessment factor

Sediment (freshwater)

Hazard assessment conclusion:

PNEC sediment (freshwater)

PNEC value:

0.917 mg/kg sediment dw

Extrapolation method:

equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:

PNEC sediment (marine water)

PNEC value:

0.092 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:

7.5 mg/kg soil dw

Assessment factor:

100

Extrapolation method:

assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:

no potential for bioaccumulation

Additional information

The assessment is based on the data currently available. New studies, based on the category review and the final decisions issued for some of the category substances, which are also relevant for this assessment, are currently being conducted. The hazard assessment with respect to aquatic toxicity will be updated once all ongoing studies have been finalised.

Studies on aquatic organisms are available for alcohol C12 -14 ethoxysulfates or other members of the category alcohol ethoxysulfates. Nevertheless PNEC-calculation for surface water (freshwater and marine) as well as sediment (freshwater and marine) is based on a QSAR-model using chronic data available for freshwater invertebrates which is describe in detail before.

Conclusion on classification

The assessment is based on the data currently available. New studies, based on the category review and the final decisions issued for some of the category substances, which are also relevant for this assessment, are currently being conducted. The hazard assessment with respect to aquatic toxicity will be updated once all ongoing studies have been finalised.

 

Classification related key information

Biodegradation in water: readily biodegradable

Bioaccumulation: low potential for bioaccumulation

Water solubility: 280 g/L at 20 ºC

 

Acute toxicity:

- For fish: 96 h LC50 (Danio rerio) = 7.1 mg a.i./L (OECD 203)

- For invertebrates: 48 h EC50 (Daphnia magna, immobilization) = 7.4 mg a.i./L (OECD 202)

- For algae: 72 h ErC50 (Scenedesmus subspicatus, growth rate) = 27.7 mg a.i./L (OECD 201)

 

Chronic toxicity:

- For fish: 28 d LNOEC (Oncorhynchus mykiss) = 0.14 mg a.i./L (OECD 215)

- For invertebrates: 21 d NOEC (Daphnia magna, reproduction): = 0.27 mg a.i./L (OECD 211)

- For algae: 72h NOErC (Scenedesmus subspicatus, growth rate) = 0.95 mg a.i./L (OECD 201)

 

Classification justification according to CLP:

Based on the available data alcohol C12-14 ethoxysulfates (CAS 68891-38-3) is considered to be rapidly degradable and has low potential for bioaccumulation. The acute aquatic toxicity L(E)C50 are above 1 mg/L for fish, invertebrates and algae. Valid chronic toxicity data are available to fish, invertebrates and algae – the lowest NOEC values are 0.14 and 0.95 mg/L (thus in the rage of > 0.1 to < 1 mg/L) for aquatic invertebrates. Alcohol C12-14 ethoxysulfates (CAS 68891-38-3) needs to be classified and labeled as environmental hazard Chronic Cat. 3 according to the Regulation (EC) No.1272/2008 (CLP) and the Regulation (EU) No. 286/2011 (4th ATP).

 

M-factor for acute aquatic toxicity:  --

M-factor for chronic aquatic toxicity: --