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Diss Factsheets

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:
6/5/2016 - 6/5/2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Principles of method if other than guideline:
The melting point determination of Test item 3,4,5,6-tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoic acid (CAS No. 18472-87-2) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block.
GLP compliance:
no
Type of method:
other: Capillary/metal block
Atm. press.:
971.9 hPa
Decomposition:
yes
Decomp. temp.:
>= 252 - <= 260 °C
Sublimation:
no
Remarks on result:
other: Melting point could not be determined since the test item started decomposing between 252°C - 260°C with colour change from red to black

Method Details

Observations

Remarks if, any

Guideline

OECD 102

-

The test item decomposes with colour change from red to black.

Method

Capillary/metal block

-

Principle of method

The temperature at which a solid becomes a liquid at standard atmospheric pressure

-

Grinding of Test item done

 

 

Not required

Atmospheric pressure

(in hPa)

 

 

971.9 hPa

 

Decomposition

 

Decomposition temperature(°C), if applicable

 

Yes

 

Sublimation

Sublimation temperature (°C), if applicable

 

 

Yes

 

Mean Melting point (°C)

(RESULT)

 

 

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decomposition range (°C), if applicable

 

252 °C-260 °C
Conclusions:
The melting point range determination of test substance was done following OECD Guideline 102 and according to the metal block capillary method. The test item decomposes with colour change from red to black. The test was conducted in replicates and mean decomposition range was determined to be 252 °C-260 °C at 971.9 hPa.
Executive summary:

The melting point determination of test item was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block.The test item decomposes with colour change from red to black.The decomposition range was determined to be 252 °C-260 °C at 971.9hPa.

Description of key information

The melting point range determination of test substance was done following OECD Guideline 102 and according to the metal block capillary method. The test item decomposes with colour change from red to black. The test was conducted in replicates and mean decomposition range was determined to be 252 °C-260 °C at 971.9 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
252 °C

Additional information

The melting point determination of test item  was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block.The test item decomposes with colour change from red to black. The decomposition range was determined to be 252 °C-260 °C at 971.9hPa.

Based on data availble from estimation done, the test substance has melting point is 241 deg C