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Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Experimental result using standard methods of analysis
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Principles of method if other than guideline:
The melting point determination of Test item 4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one (CAS No. 596-03-2)was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block
GLP compliance:
not specified
Type of method:
capillary method
Remarks:
standard laboratory method
Melting / freezing pt.:
260.6 - 270 °C
Atm. press.:
970.4 hPa
Decomposition:
no
Sublimation:
no
Remarks on result:
other: Experimental result

The melting point of 4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one is 260.6 -270 °C a t 970.4 hPa. No decomposition was observed at this temperature.

Conclusions:
The melting point determination of 4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one (CAS No. 596-03-2 ) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting point range was found to be 260.6 -270 °C at 970.4 hPa.
Executive summary:

The melting point determination of4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one(CAS No. 596-03-2 )was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting point range was found to be260.6 -270 °Cat 970.4 hPa.

Description of key information

The melting point determination of 4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one (CAS No. 596-03-2 ) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting point range was found to be 260.6 -270 °C at 970.4 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
260.6

Additional information

The melting point determination of 4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one(CAS No. 596-03-2 )was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting point range was found to be 260.6 -270 °Cat 970.4 hPa.