Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.024 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.241 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.002 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.024 mg/L

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
163.35 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
2.45 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.245 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.474 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Derivation of PNECs

The PNECfreshwater, PNECmarine water, PNECintermittent release (freshwater and marine water) and PNEC STP were derived by application of an assessment factor. This procedure is described in detail in the ECHA REACH Guidance of May 2008, Chapter R.10 ("Characterisation of dose [concentration]-response for environment").

The PNECs for sediment (freshwater and marine water) and soil are derived using the Equilibrium Partitioning Method (EPM) which is in concordance with ECHA REACH Guidance R.10 (“Guidance of Information Requirements and Chemical Safety Assessment, Chapter R.10: Characterisation of dose-response for environment”). The required normalized organic-carbon soil coefficient (Koc) value for manganese glucoheptonate was estimated by QSAR prediction (Chemservice, 2017). The applied Henry's Law Constant was calculated under consideration of the vapour pressure and the water solubility (Chemservice, 2017).

Furthermore, no PNEC for the atmospheric compartment (PNECair) has been calculated. It is considered as not relevant based on the chemical structure and intrinsic properties of manganese glucoheptonate.

Secondary poisoning (PNEC oral) was not calculated either since the substance has no potential for bioaccumulation.

Conclusion on classification

Regarding all available data of the acute and/or chronic toxicity tests on aquatic organisms and taking into account the provisions laid down in Council Directive 67/548/EEC and CLP Regulation (EC) No. 1272/2008, the substance Manganese glucoheptonate does not need to be classified as hazardous to the environment.

Experimental results of the read-across substances have been transferred and/or converted in a worst-case approach in order to account for Manganese glucoheptonate. Adequate long-term data are not available for the substance. Nevertheless, the substance has been assessed as readily/rapidly biodegradable.

The most sensitive aquatic short-term toxicity data was determined forSelenastrum capricornutum (Christensen et al, 1979). An EC50 (14 d) of 3.1 mg/L was reported for Manganese dichloride which was converted to an EC50 of 24.11 mg/L for Manganese glucoheptonate.

Based on these data, no environmental classification is triggered for the substance.