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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2013
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Guideline:
other: not indicated
Principles of method if other than guideline:
not indicated
GLP compliance:
no
Type of method:
capillary method
Melting / freezing pt.:
>= 175 - <= 176 °C
Atm. press.:
ca. 1 atm
Remarks on result:
other: https://pubchem.ncbi.nlm.nih.gov/compound/Dapsone#section=Melting-Point
Conclusions:
No fully GLP or guideline study is available, however peer reviewed publication states the melting point is 175-176 oC at atmospheric pressure.

Description of key information

No guideline GLP study is available, however published data is available from the Merck index Budavari, S. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 1996., p. 478].

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
175 °C

Additional information