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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Deviations:
not specified
Principles of method if other than guideline:
Data from handbook, guideline and method not specified
GLP compliance:
not specified
Type of method:
other: not specified
Melting / freezing pt.:
>= 235 - <= 245 °C
Remarks on result:
other: Pressure not specified; Source: Patent, Shteinberg; Lobenskaya; SU319584; (1971); Ref. Zh., Khim.; vol. 12; nb. N143P; (1972)
Melting / freezing pt.:
>= 283 - <= 284 °C
Remarks on result:
other: Pressure not specified; Source: Patent, Bayer AG; US3631074; (1969)
Melting / freezing pt.:
281 °C
Remarks on result:
other: Pressure not specified; Source: Bayer; GB1029448; (1966); Chem.Abstr.; vol. 65; nb. 8846f; (1966)
Conclusions:
To 1,4-Dichloro-5,8-dihydroxyanthraquinone a melting point between 235 – 281 °C is reported.
Executive summary:

To test item 1,4-Dichloro-5,8-dihydroxyanthraquinone a melting point between  235 – 245 °C (russian patent, 1971) and 281 - 284 °C ( patent of Bayer AG) is reported (Reaxys, 2016). Corresponding pressure values are not specified.

Description of key information

To test item 1,4-Dichloro-5,8-dihydroxyanthraquinone a melting point between  235 – 245 °C (russian patent, 1971) and 281 - 284 °C ( patent of Bayer AG) is reported (Reaxys, 2016). Corresponding pressure values are not specified.

Key value for chemical safety assessment

Additional information