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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Melting point / freezing point

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Administrative data

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Endpoint:
melting point/freezing point
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
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:
1. SOFTWARE
Epi Web 4.11
2. MODEL (incl. version number)
MPBPVP v1.43
3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
N(H)(H)(H)(H)OC(=O)c1ccccc1
4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
well established program/model released by US governmental department

5. APPLICABILITY DOMAIN
different Ammonium salts and Benzoate salts are used in training set

6. ADEQUACY OF THE RESULT
The calculated results are comparable to the sublimation temperature reported in handbooks.
Qualifier:
no guideline followed
Principles of method if other than guideline:
QSAR estimation using well established software tool
GLP compliance:
no
Specific details on test material used for the study:
not applicable
Melting / freezing pt.:
ca. 154 °C
Remarks on result:
other: calculated result
Melting / freezing pt.:
ca. 194.5 °C
Remarks on result:
other: experimental database entry within the software, no further reference available

Although the output of the program is titled as Melting point, the value is close to the reported sublimation temperature in handbooks

and can be regarded as temperature of phase transition from solid to liquid/gaseous.

In addition, the softwares output includes a Melting point from experimental database, but no reference is given. This value is within the range of the reported decomposition temperature of the substance. However, no further information on the behaviour of the substance is stated.

Conclusions:
The calculated Melting point of the substance is 154 °C.
Endpoint:
melting point/freezing point
Type of information:
other: handbook data
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline available
Principles of method if other than guideline:
handbook data, no further information available
GLP compliance:
no
Specific details on test material used for the study:
not applicable
Decomposition:
yes
Decomp. temp.:
ca. 198 °C
Sublimation:
yes
Subl. temp.:
ca. 160 °C
Conclusions:
Ammonium Benzoate sublimes at 160 °C and decomposes at 198 °C.

Description of key information

The substance decomposes at 198 °C (stated as melting point) and sublimes at 160 °C.

This information is taken from Handbook data and supported by QSAR calculation.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
160 °C

Additional information