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Boiling point

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Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: This result was derived from a peer-reviewed handbook source
Qualifier:
no guideline available
Principles of method if other than guideline:
No information available regarding guideline or methodology.
GLP compliance:
not specified
Type of method:
other: no data. Information from handbook sources
Boiling pt.:
740 °C
Atm. press.:
101 325 Pa
Decomposition:
yes

Observed boiling point 740°C

Conclusions:
A boiling point value of 740ºC is reported in a handbook or collection of reliable data which has been subject to peer-review and in which the original data sources are traceable. The result is considered to be reliable.
Executive summary:
A boiling point value of 740ºC is reported in a handbook or collection of reliable data which has been subject to peer-review and in which the original data sources are traceable. The result is considered to be reliable.
Endpoint:
boiling point
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
not applicable
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
Justification for type of information:
QSAR prediction: US EPA accepted QSAR method for organic chemicals properties assessment.
Qualifier:
according to
Guideline:
other: . QSAR model (Estimation: EPI Suite (Adapted Stein & Brown method))
Principles of method if other than guideline:
QSAR model (Estimation: EPI Suite (Adapted Stein & Brown method))
GLP compliance:
no
Remarks:
not applicable. QSAR model
Type of method:
other: not applicable. QSAR model
Boiling pt.:
691.46 °C
Atm. press.:
1 other: atm
Decomposition:
no
Remarks:
no data provided by method
Remarks on result:
other: The exact atmospheric pressure at which this result was determined is not stated, but may be assumed to be within the normal range of standard pressure.

Overview of QSARs estimationson Boiling Point of Dipotassium oxide/Potassium oxide

 

Method

 

Results

Remarks

Reference

QSAR estimate

Boiling Point: 691.46 deg C (Adapted Stein and Brown Method)

Vapor Pressure Estimations (25 deg C): (Using BP: 691.46 deg C (estimated))

(Using MP: 302.03 deg C (estimated))

VP: 3.51E-023 mm Hg (Antoine Method) : 4.68E-021 Pa (Antoine Method)

VP: 2.27E-016 mm Hg (Modified Grain Method) : 3.03E-014 Pa (Modified Grain Method)

VP: 1.06E-015 mm Hg (Mackay Method) : 1.41E-013 Pa (Mackay Method)

Selected VP: 2.27E-016 mm Hg (Modified Grain Method) : 3.03E-014 Pa (Modified Grain Method)

Subcooled liquid VP: 2.83E-013 mm Hg (25 deg C, Mod-Grain method)

                    : 3.77E-011 Pa (25 deg C, Mod-Grain method)

Valid with restrictions (2); QSAR method;

Estimated values

MPBPWIN (v.1.43)

 

 

Conclusions:
Using the EPI Suite Mpbwin (v.1.43) QSAR model, a Boiling Point of  691.46 deg C (estimated) was established.
Executive summary:

Using the EPI Suite Mpbwin (v.1.43) QSAR model, a Boiling Point of  691.46 deg C (estimated) was established.

Description of key information

Using the EPI Suite Mpbwin (v.1.43) QSAR model, a Boiling Point of  691.46 deg C (estimated)  was established.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
691.46 °C

Additional information

Using the EPI Suite Mpbwin (v.1.43) QSAR model, a Boiling Point of  691.46 deg C (estimated) was established.