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EC number: 266-041-3
CAS number: 65997-06-0
reliable biodegradation studies are available for members of this
category, for rosin and for monovalent and divalent salts of rosin.
Based on the results of these studies, members of the category Rosin,
hydrogenated rosin and their salts would be considered readily
on accumulation in aquatic organisms is vital for understanding the
environmental behaviour of a substance. Accumulation is a general term
for the net result of absorption (uptake), distribution, metabolism and
excretion (ADME) of a substance in an organism.
study is available with measured BCF values for various rosin acids.
Rosin acids are the predominant components of rosin (Niimi and Lee
1992). Therefore, it is considered appropriate to read across from rosin
acids. Rainbow trout (Oncorhynchus mykiss) were exposed to nine resin
acids that included abietic, dehydroabietic, chlorodehydroabietic,
dichlorodehydroabietic, neoabietic, pimaric, isopimaric,
sandaracopimaric, and palustric acids. Bioconcentration factors (BCFs)
for these acids ranged from <25 to 130 among fish that were exposed to
mean waterborne concentrations of 0.7 to 3.6 µg/L for 20 days. Total
free and conjugated acid concentrations ranged from 1 to 3 mg/kg on a
whole body basis. Elimination rates were also monitored over a 10-day
depuration period, although no detectable levels were observed. Based on
initial chemical concentrations, it was concluded that the half-lives of
these acids were < 4 days.
et al. (1996) determined BCF values for mussels (Hyridella menziesi)
exposed to effluent from a pulp and paper mill. Concentrations of resin
acids (pimaric acid, isopimaric acid, dehydroabietic acid, abietic acid
and 14 -chlorodehydroabietic acid) were analysed in mussels and in the
effluent for a 28d exposure phase, followed by a 21d depuration phase.
BCF values for the individual resin acids ranged from 110 to 330 L/kg.
BCF values for resin acids indicate that substances in this category are
estimation using BCFBAF v3.00 and BCFBAF v3.01, of the EPISUITE 4.0
software indicate that the calculated BCF values for members of the
Rosin, hydrogenated rosin and their salts category are below the B
criteria of 2000 L/kg.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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