Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 209-942-9 | CAS number: 598-62-9
Endpoint summary
Administrative data
Description of key information
Additional information
ENVIRONMENTAL FATE PROPERTIES
Summary
of degradation
MnCO3
is inorganic and hence the ready biodegradation and hydrolysis tests are
not relevant. This is because there is no carbon to be evolved and no
chemical bonds to be broken. In a water solubility study, conducted
according to the standardised guideline OECD 105 (flask method), the
water solubility of MnCO3 was found to be 3.63 mg/L at 20°C. In a
transformation dissolution study, conducted in accordance with the
standardised guideline OECD 29, the concentration of manganese dissolved
and/or transformed was 9208.2 µg/L after 7 days from an initial
substance loading rate of 100 mg/L (i.e around three times the water
solubility). Not surprisingly these limit values are rather higher than
the background concentration of manganese in European environments (15.9
µg Mn/L in surface water, 452 mg/kg in sediment, 428.6 mg/kg in soil;
“Probabilistic Distribution of Manganese in European Surface Water,
Sediment and Soil and Derivation of Predicted Environmental
Concentrations (PEC)”, Parametrix, 2009 and supported by GEMAS data).
Volatilisation
Data on volatilisation are not available for the substance. MnCO3 is
a solid and hence not volatile.
The
72 hr adsorption/desorption study (OECD 106) on MnCl2 (a more soluble/
readily available form of manganese (Mn2+)) in 35 different soil types
illustrate that adsorption is pH sensitive. A median Kd of 994 mL/g was
determined for all soil types used (pH range 3.0-8.5).
Summary and discussion of bioaccumulation
No experimental data on bioaccumulation exist. Manganese is an
essential trace nutrient in animals and is required for the
photosynthetic process in plants. Hence unacceptable bioaccumulation is
highly unlikely to occur in any organism due to their ability to
regulate intake and loss from natural sources
Secondary poisoning
Bioaccumulation of MnCO3 is not expected to occur. Hence no
secondary poisoning risk exists.
Distribution
modelling
No distribution modelling data exist.
Summary of environmental distribution
Assessment of PBT/vPvB Properties - Comparison with the Criteria of
Annex XIII
According to the Guidance on information requirements and chemical
safety assessment, Chapter R.11: PBT assessment, “the PBT and vPVB
criteria of Annex XIII to the regulation do not apply to inorganic
substances”. Therefore MnCO3 is not considered to require any further
assessment of PBT properties.
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.
