Registration Dossier
Registration Dossier
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EC number: 269-061-0 | CAS number: 68186-99-2 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 77005.
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
The poorly soluble substance Manganese alumina pink corundum is evaluated by comparing the dissolved metal ion levels resulting from the transformation/dissolution test after 7 and 28 days at a loading rate of 1 mg/L with the lowest acute and chronic ecotoxicity reference values (ERVs) as determined for the (soluble) metal ions.
The acute ERVs are based on the lowest EC50/LC50 values for algae, invertebrates and fish, and were obtained from the Metals classification tool (MeClas) database as follows: The acute ERVs for aluminium are 1,040 µg Al/L at pH 6 and 3,390 µg Al/L at pH 8 whereas the acute ERV for manganese is 3,200 µg Mn/L. Thus, the acute ERVs for aluminium and manganese ions are above 1 mg/L, respectively, and a concern for short-term (acute) toxicity was not identified (no classification). According to ECHA Guidance on the Application of the CLP Criteria (Version 5.0, July 2017), “Where the acute ERV for the metal ions of concern is greater than 1 mg/l the metals need not be considered further in the classification scheme for acute hazard.” Further, the determined dissolved concentrations of 0.29 µg Al/L and 10.66 µg Mn/L in the T/D test after 7 days at pH 6 are significantly lower than the corresponding short-term ERVs. Hence, the substance Manganese alumina pink corundum is not sufficiently soluble to cause short-term toxicity at the level of the acute ERVs (expressed as EC50/LC50).
In accordance with Figure IV.4 “Classification strategy for determining acute aquatic hazard for metal compounds” of ECHA Guidance on the Application of the CLP Criteria (Version 5.0, July 2017) and section 4.1.2.10.2. of Regulation (EC) No 1272/2008, the substance Manganese alumina pink corundum is poorly soluble and does not meet classification criteria for acute (short-term) aquatic hazard.
The chronic ERVs are based on the lowest NOEC/EC10 values for algae, invertebrates and fish. In accordance with the Classification and Labelling Committee in 1999 (see report 013-003-00-7 submitted to the C&L Committee, 1999) a chronic ERV for dissolved aluminium ions has not been derived since a concern for long-term (chronic) toxicity of aluminium ions was not identified (no classification). Due to the lack of a chronic hazard potential for dissolved aluminium ions, only manganese concentrations and the respective chronic ERV are taken into account. The chronic ERV for manganese of 550 µg Mn/L was obtained from the Metals classification tool (MeClas) database. The dissolved manganese concentration of 8.91 µg Mn/L in the T/D test after 28 days at pH 6 is significantly lower than the corresponding lowest long-term ERV of 550 µg Mn/L. Hence, the substance Manganese alumina pink corundum is not sufficiently soluble to cause long-term toxicity at the level of the chronic ERVs (expressed as NOEC/EC10).
In accordance with Figure IV.5 „Classification strategy for determining long-term aquatic hazard for metal compounds “of ECHA Guidance on the Application of the CLP Criteria (Version 5.0, July 2017) and section 4.1.2.10.2. of Regulation (EC) No 1272/2008, the substance Manganese alumina pink corundum is poorly soluble and does also not meet classification criteria for chronic (long-term) aquatic hazard.
In sum, the substance Manganese alumina pink corundum is poorly soluble and does not meet classification criteria of Regulation (EC) No 1272/2008 for acute (short-term) and chronic (long-term) aquatic hazard.
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