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Environmental fate & pathways

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As the test substance (CAS 91744-38-6, Glycerides, C16-18 mono-, di- and tri-, hydrogenated, citrates, potassium salts) is readily biodegradable further studies regarding the endpoints "Simulation testing on ultimate degradation in surface water", "Sediment simulation testing", "Identification of degradation products" (REACH Annex IX, endpoints,,, and 9.2.3), as well as a hydrolysis study (REACH Annex VIII, endpoint, column 2) and investigations regarding adsorption/desorption (REACH Annex VIII, endpoint 9.3.1 and REACH Annex IX, endpoint 9.3.3) are not required.

Data regarding the aquatic bioaccumulation of the test substance are not available and are not a requirement of Annex IX of the REACH Regulation. However, the potential for bioaccumulation in aquatic organisms is low because the substance is readily biodegradable. In addition, published information is available on the read-across substance Medium chain glycerides (CAS 73398-61-5) supported by the read-across justification report in section 13 of this CSR. In summary, due to the properties of the category members Fatty Acid Glycerides, their bioaccumulation in aquatic organisms is assumed to be low. As Fatty Acid Glycerides are readily biodegradable and have very low water solubility (< 1 mg/L), only low concentrations in the aquatic environment and thus a low exposure of aquatic organisms can be expected. Therefore, the substance does not meet the B and vB criteria.