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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Endpoint:
melting point/freezing point
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Justification for type of information:
1. HYPOTHESIS FOR THE ANALOGUE APPROACH
A read-across based on analogue approach has been performed for that endpoint.
The read-across hypothesis, according to Read Across Assessment Framework published by ECHA, is based on the fact that different compounds which have the same type of effect(s). It corresponds to the scenario 2 described as follows:
« This scenario covers the analogue approach for which the read-across hypothesis is based on different compounds which have the same type of effect(s). For the REACH information requirement under consideration, the effects obtained in a study conducted with one source substance are used to predict the effects that would be observed in a study with the target substance if it were to be conducted. The same type of effect(s) or absence of effect is predicted. The predicted strength of the effects may be similar or based on a worst-case assumption. ».

2. SOURCE AND TARGET CHEMICAL(S) (INCLUDING INFORMATION ON PURITY AND IMPURITIES)
The read-across has been performed between magnesium titanate (CAS No. 12032-30-2; target chemical) and calcium titanate (CAS No. 12049-50-2; source chemical).

3. ANALOGUE APPROACH JUSTIFICATION
Both molecules share the same functional group. Therefore, they have common functional groups (Titanium trioxide and alkaline earth metal) and it is expected that these molecules have also common breakdown products and common mechanisms of action.


3. ANALOGUE APPROACH JUSTIFICATION
The read-across approach is justified because both compounds have strong structural similarities and it is expected that they also have common breakdown products or mechanism of action.
Based on these elements, it can be assumed that acetone magnesium titanate and calcium titanate may have similar toxicological properties. The read-across approach between the source and the target chemicals is therefore relevant for this endpoint.
Cross-reference
Reason / purpose:
read-across source
Reference
Endpoint:
melting point/freezing point
Type of information:
not specified
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
Handbook data; no guideline stated
Type of method:
other: Handbook data; no guideline stated
Key result
Melting / freezing pt.:
1 980 °C
Remarks on result:
other: Handbook data
Conclusions:
The melting point of calcium titanate is 1,980°C.
Executive summary:

The melting point of calcium titanate is 1,980°C. This figure was obtained from CRC handbook data.

Data source

Materials and methods

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
1 980 °C
Remarks on result:
other: no information upon method

Applicant's summary and conclusion