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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

STP

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

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

Classification related information

Ready biodegradability: diiron titanium dioxide is neither biotically nor abiotically rapidly degradable.

Log Kow: No partition coefficient could be derived.

Effect values

Short-term toxicity:

Fish: 96-hour EC50 = 1000 mg/L

Aquatic invertebrates: 48-hour EC50 > 100 mg/L

Algae: 72 -hour EC50 (growth rate) > 100 mg/L

Long-term toxicity:

Algae: NOEC (growth rate) > 100 mg/L

Diiron titanium pentaoxide is highly insoluble in water, hence indicating that aquatic toxicity is unlikely to occur. According to the public ECHA REACH dossiers for titanium dioxide (CAS 13463-67-7) and diiron trioxide (CAS 1309-37-1) (last accessed on: 18 March 2020) the source substances were assessed to be non-toxic to aquatic organisms and are neither classified for short-term (acute) nor for long-term (chronic) aquatic toxicity according to Regulation (EC) No 1272/2008 (CLP). Target and source substances are metal-containing inorganic oxides. The target substance diiron titanium pentaoxide is a mixed oxide of titanium dioxide and diiron trioxide. The source substances share the common atoms Ti, O and Fe with the target substance and have very similar physicochemical properties. Based on an analogue approach, effects values for the target substance on short-term toxicity to fish and aquatic invertebrates as well as algae were derived. All effect concentrations are above 100 mg/L. Consequently, diiron titanium pentaoxide is not classified for short-term (acute) and long-term (chronic) aquatic toxicity according to Regulation (EC) 1272/2008 (CLP) as last amended by its 14th ATP (Regulation (EC) 2020/217).