[No public or meaningful name is available]

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

transformation / dissolution of metals and inorganic metal compounds

Type of information:

experimental study

Adequacy of study:

key study

Study period:

April 2022

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Series on Testing and Assessment No. 29 (23-Jul-2001): Guidance document on transformation/dissolution of metals and metal compounds in aqueous media

GLP compliance:

no

Type of method:

flask method

Specific details on test material used for the study:

Batch No.: OP.1501019

Type of test:

full transformation/dissolution test - metals and sparingly soluble metal compounds

Mean dissolved conc.:

< 0.01 mg/L

Element analysed:

Titanium

Loading of aqueous phase:

1 mg/L

Incubation duration:

7 d

Test conditions:

Temperature: controlled ambient temperature + 2 °C in the range 20 - 25°C.
The test was performed in closed vessels and in the dark.
Two time intervals were included in the test to determine the concentrations of dissolved Titanium oxide: after 7 days of incubation and after 28 days of incubation (end of the test).

Key result

Type of test:

full transformation/dissolution test - metals and sparingly soluble metal compounds

Mean dissolved conc.:

< 0.01 mg/L

Element analysed:

Titanium

Loading of aqueous phase:

1 mg/L

Incubation duration:

28 d

Test conditions:

Temperature: controlled ambient temperature + 2 °C in the range 20 - 25°C.
The test was performed in closed vessels and in the dark.
Two time intervals were included in the test to determine the concentrations of dissolved Titanium oxide: after 7 days of incubation and after 28 days of incubation (end of the test).

Conclusions:

The transformation/dissolution in aqueous media test performed on the test item showed a concentration lower than LOQ of 0.010 ppm. In conclusion, the substance is considered not soluble in water, even after 28 days.

Description of key information

The transformation/dissolution in aqueous media test performed on the substance showed a concentration lower than LOQ of 0.010 ppm. In conclusion, the substance is considered not to be water soluble, even after 28 days. This entails the absence of aquatic toxicity, even long-term toxicity, as a chronic toxicity study on Daphnia would last only 21 days, in accordance with OECD 211.