Registration Dossier

Diss Factsheets

Physical & Chemical properties

Vapour pressure

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Qualifier:
according to guideline
Guideline:
other: EPI Suite v1.68
Principles of method if other than guideline:
Vapour pressure estimations. Software: MPBPVP (Modified Grain Method)
GLP compliance:
no
Type of method:
other: QSAR model modified grain calculation
Specific details on test material used for the study:
The substance is a mono-constituent substance; the prediction is done on the constituent.
Temp.:
25 °C
Vapour pressure:
0 Pa

Considering that a comparative approach between strontium oxalate and oxalic acid can be a reasonnable assumption for the majority of organic salt compounds (e.g. metal salts of some organic acids).

The presence of a common organic part allows to give the tendancy of the behavior of the organic salt regarding volatility property.

Indeed, the non volatility of the oxalic acid (Vp=0.0056 mm Hg) also estimated by QSAR model MPBPVP v1.43 (Syracuse Research Corp.) corroborate the absence of volatility of the strontium oxalate salt.

Conclusions:
The vapour pressure of the test item was estimated to be 0.000474 Pa at 25 °C with (Q)SAR model Epi Suite Software tool.
The substance is considered as not volatile.
Endpoint:
vapour pressure
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the melting point is above 300°C
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
According to r7a guidance (p50), the substance decomposes from 420-590°C (loss of CO and CO2), the testing is technically not possible.

Description of key information

The substance decomposes from 420-590°C (loss of CO and CO2), the testing is technically not possible.

However, the vapour pressure of the test item was estimated to be 0.000474 Pa at 25 °C with (Q)SAR model Epi Suite Software tool.

The substance is considered as not volatile.

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information

Considering that a comparative approach between strontium oxalate and oxalic acid can be a reasonnable assumption for the majority of organic salt compounds (e.g. metal salts of some organic acids).

The presence of a common organic part allows to give the tendancy of the behavior of the organic salt regarding volatility property.

Indeed, the non volatility of the oxalic acid (Vp=0.0056 mm Hg) also estimated by QSAR model MPBPVP v1.43 (Syracuse Research Corp.) corroborate the absence of volatility of the strontium oxalate salt.