Sulfuric acid, mono-C16-20-alkyl esters, sodium salts

PBT assessment

PBT assessment: overall result

Reference

Reference 1

Name:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Type of composition:

boundary composition of the substance

State / form:

solid: bulk

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference 2

Name:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Type of composition:

legal entity composition of the substance

State / form:

solid: bulk

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

Reference substance:

Sulfuric acid, mono-C16-20-alkyl (even numbered)-esters, sodium salts

PBT status:

the substance is not PBT / vPvB

Justification:

The PBT assessment of C16-20AS Na (CAS 91648-55-4) is based on the criteria set out in the "Guidance on information requirements and chemical safety assessment, Chapter R.11: PBT Assessment" (ECHA, 2014).

 

Persistence (P) Assessment:

A substance is not considered to be persistent if it can be demonstrated that it has potential to degrade (via photolysis, hydrolysis and/or biodegradation). Available testing using standardized test guidelines could demonstrate the ready biodegradability of the substance (90-100% after 28 days based on CO2 evolution, OECD 301B). Therefore, C16-20AS Na (CAS 91648-55-4) does not meet the Persistent (P) or very Persistent (vP) criteria.

 

Bioaccumulation (B) Assessment:

The value of log Pow was determined to be 3.9. Nevertheless, the available data indicate that C16-20AS Na (CAS 91648-55-4) has a rather low potential for bioconcentration and the substance will not accumulate to significant levels in the aquatic environment. Therefore, C16-20AS Na (CAS 91648-55-4) does not meet the Bioaccumulative (B) or very Bioaccumulative (vB) criteria.

 

Toxicity (T) Assessment:

Environmental Toxicity:

According to Annex XIII of REACH Regulation (EC) No 1907/2006, a substance is considered to be toxic in terms of PBT criteria if long-term NOEC values for aquatic organisms are lower than 0.01 mg/L. The NOEC value based on chronic experimental data on daphnids was 0.204 mg/L. This value exceeds the toxicity criterion and therefore, C16-20AS Na (CAS 91648-55-4) is not considered as a toxic substance regarding ecotoxicological endpoints.

Human Health Toxicity:

Carcinogenicity: the available data on C16-20AS Na (CAS 91648-55-4) do not warrant classification for carcinogenicity under GHS/CLP.

Mutagenicity: the available data indicate that C16-20AS Na (CAS 91648-55-4) is not genotoxic or mutagenic and do not warrant classification for carcinogenicity under GHS/CLP.

Reproductive Toxicity: there is no evidence that C16-20AS Na (CAS 91648-55-4) causes reproductive or developmental toxicity. The available data indicate that members of the alkyl sulfate category are not toxic to reproduction and do not warrant classification under GHS/CLP.

Chronic toxicity: due to the results of the relevant mammalian toxicity studies, C16-20AS Na (CAS 91648-55-4) is not classified as STOT RE.

 

The substance is considered not to be PBT or vPvB on the basis of the provided relevant data.