Alcohols, C16-18

Ecotoxicological Summary

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:

PNEC aqua (freshwater)

PNEC value:

1.83 mg/L

Assessment factor:

10

Extrapolation method:

assessment factor

PNEC freshwater (intermittent releases):

1.3 mg/L

Marine water

Hazard assessment conclusion:

PNEC aqua (marine water)

PNEC value:

0.4 mg/L

Assessment factor:

100

Extrapolation method:

assessment factor

PNEC marine water (intermittent releases):

14 µg/L

STP

Hazard assessment conclusion:

PNEC STP

PNEC value:

1 000 mg/L

Assessment factor:

10

Extrapolation method:

assessment factor

Sediment (freshwater)

Hazard assessment conclusion:

PNEC sediment (freshwater)

PNEC value:

0.272 mg/kg sediment dw

Assessment factor:

100

Extrapolation method:

assessment factor

Sediment (marine water)

Hazard assessment conclusion:

PNEC sediment (marine water)

PNEC value:

27.2 µg/kg sediment dw

Assessment factor:

100

Extrapolation method:

assessment factor

Hazard for air

Air

Hazard assessment conclusion:

no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:

PNEC soil

PNEC value:

20 mg/kg soil dw

Assessment factor:

50

Extrapolation method:

assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:

PNEC oral

PNEC value:

86.7 mg/kg food

Assessment factor:

30

Additional information

The substance Alcohols, C16-18 (CAS# 67762-27-0) is from the category of Long Chain Alcohols (C6-22 primary aliphatic alcohols) .Alcohols, C16-18 do not present a hazard for the environment (acute aquatic toxicity >100 mg/l, or above water solubility with no effects exhibited)

 

For the longest chain category members (>C16) as Alcohols, C16-18: low solubility limits the dissolved (and hence bioavailable) concentration of the alcohol to the extent that neither acute nor chronic toxicity are likely to be exhibited; also significantly biodegradable (considered equivalent to inherent biodegradation; very extensive removal seen under environmentally relevant conditions) but more adsorbing than the lower homologues.  

The substance is almost insoluble or slightly soluble and no effects are expected for Alcohols, C16-18 up to limit of aqueous solubility.

 

Summary of Acute Toxicity for Organism Group and Aquatic algae, cyanobacteria and aquatic plants
Organism Group	Average Acute Toxicity	Acute Toxicity Range
Invertebrates	Not Acutely Toxic	Not Acutely Toxic
Fish	Not Acutely Toxic	Not Acutely Toxic
Molluscs and Amphibians	Not Acutely Toxic	Not Acutely Toxic
Annelida and microorganisms	Not Acutely Toxic	Not Acutely Toxic
Aquatic algae, cyanobacteria and aquatic plants	Not Acutely Toxic	Not Acutely Toxic

Conclusion on classification

The Alcohols, C16-18 does not meet the criteria to be classified for environmental hazards. Based on the hazard assessment of Alcohols, C16-18 in section 2.1 and 2.2.in IUCLID 5.4., available data for the substance and following the “Guidance on Information Requirement and Chemical Safety Assessment R.10, it is concluded that does not meet the criteria to be classified for environmental hazardsaccording to the criteria described in Directive 67/548 and in the CLP Regulation:

 

Directive 67/548

N; R50 R52 R53 N;R50/53 N;R51/53 R52/53 N;R59

CLP Regulation

H400 Aquatic. Acute 1 Very toxic to aquatic life H413 Aquatic Chronic 4 May cause long lasting harmful effects to aquatic life H400 Aquatic acute 1, Very toxic to aquatic life H410 Aquatic chronic 1 Very toxic to aquatic life with long lasting effects H411 Aquatic Chronic 2 Toxic to aquatic life with long lasting effects H412 Aquatic Chronic 3 Harmful to aquatic life with long lasting effects EUH059 Ozone, Hazardous to the ozone layer

 

 

It is concluded that the substance Alcohols, C16-18 does not meet the criteria to be classified for environmental hazards.