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Physical & Chemical properties

Melting point / freezing point

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Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15-09-2017 – 15-09-2017
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 Barium 3-hydroxy-4-[(4-methyl-2- sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1 ) 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:
other: standard laboratory method
Specific details on test material used for the study:
- Name of test material: barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate- Molecular formula: C18H14N2O6S.Ba- Molecular weight: 521.697 g/mol- Smiles notation: [Ba+2].c1c(c(c(c2ccccc12)\N=N\c1c(cc(cc1)C)S(=O)(=O)[O-])O)C(=O)[O-]- InChl: 1S/C18H14N2O6S.Ba/c1-10-6-7-14(15(8-10)27(24,25)26)19-20-16-12-5-3-2-4-11(12)9-13(17(16)21)18(22)23;/h2-9,21H,1H3,(H,22,23)(H,24,25,26);/q;+2/p-2/b20-19+;- Substance type: Organic- Physical State: Solid
Key result
Decomposition:
yes
Decomp. temp.:
>= 312.2 - <= 328.2 °C
Sublimation:
no
Remarks on result:
other: Mean decomposition temperature

 Method Details    Observations
 Guideline  OECD 102  
 Method  Capillary/metal block  
 Principle of method  

The temperature at which a

solid becomes a liquid at

standard atmospheric

pressure

  
 

Atmospheric

pressure

 hPa   
 Decomposition  

Decomposition temperature

(°C), if applicable

  Yes
 Sublimation  

Sublimation temperature

(°C), if applicable

 NO 
 Mean Melting Point  °C  312.2-328.2°C
Conclusions:
The melting point determination of Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]- 2-naphthoate (CAS No. 17852-98-1) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean decomposition temperature was determine to be 312.2-328.2°C at 970.8hPa.
Executive summary:

The melting point determination of Test item Barium 3-hydroxy-4-[(4-methyl-2- sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The Mean decomposition temperature was determine to be 312.2 -328.2°C at 970.8 hPa.

Description of key information

The melting point determination of Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]- 2-naphthoate (CAS No. 17852-98-1) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean decomposition temperature was determine to be 312.2-328.2°C at 970.8hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
312.2 °C

Additional information

The melting point determination of Test item Barium 3-hydroxy-4-[(4-methyl-2- sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The Mean decomposition temperature was determine to be 312.2 -328.2°C at 970.8 hPa.