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EC number: 215-125-8
CAS number: 1303-86-2
The following boron-sorption values are
Soil: Kp = 2.2 L/kg
Marine Sediment: Kp = 3.0 L/kg
Freshwater Sediment: Kp = 1.94 L/kg
Suspended solids: Kp = 3.5 L/kg.
Based on its high water solubility,
relatively low sorption value, low vapour pressure, partition
coefficients and environmental distribution, boric acid is considered to
be relatively mobile in the environment. Atmospheric boron will wash out
via percolating rainwater. Boron in sediments and soils will equilibrate
with overlying water or pore-water, with the equilibrium favoring the
aqueous phase. Boron may leach or dissolve from solids, but rates will
vary depending on the matrix. Non-porous solids will retain boron.
Anthropogenic boron releases are mostly from combustion of fuels such as
coal; amounts associated with other used of mined borates result in
smaller environmental releases. About half the processed boron is used
in products that are not likely to release boron to the environment. The
oceans are the largest reservoir of boron and sea salt aerosols are
likely the largest portion (about 75%) of the estimated
non-anthropogenic releases of boron to the environment, about 2 x 109
Please also refer to the read-across statement
attached to section 13.
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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