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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:
26-08-2017 – 26-08-2017
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:
OECD Guideline 102 (Melting point / Melting Range)
Principles of method if other than guideline:
The melting point determination of Test item 5-amino-2-chlorobenzenesulphonic acid (CAS No. 88-43-7 ) 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: standard laboratory method
Specific details on test material used for the study:
- Name of test material: 5-amino-2-chlorobenzenesulfonic acid
- Molecular formula: C6H6ClNO3S
- Molecular weight: 207.636 g/mol
- Smiles notation: S(c1c(ccc(c1)N)Cl)(O)(=O)=O
- InChl: 1S/C6H6ClNO3S/c7-5-2-1-4(8)3-6(5)12(9,10)11/h1-3H,8H2,(H,9,10,11)
- Substance type: Organic
- Physical state: Solid
Key result
Melting / freezing pt.:
>= 290 - <= 295.1 °C
Atm. press.:
963.8 hPa
Decomposition:
no
Sublimation:
no
Remarks on result:
other: other details not available

Observation Table & Result :

 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 

 963.8hPa

 Decomposition

 

Decomposition temperature

(°C), if applicable

 No

 Sublimation

 

Sublimation temperature

(°C), if applicable

NO 

 Mean Melting Point

 °C

 290-295.1°C

Conclusions:
The melting point determination of Test item 5-amino-2-chlorobenzenesulphonic acid (CAS No. 88-43-7 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The Mean Melting Temperature Range was determine to be 290-295.1°C at 963.8 hPa.
Executive summary:

The melting point determination of Test item 5-amino-2-chlorobenzenesulphonic acid (CAS No. 88-43-7 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The Mean Melting Temperature Range was determine to be 290-295.1°C at 963.8 hPa.

Description of key information

The melting point determination of Test item 5-amino-2-chlorobenzenesulphonic acid (CAS No. 88-43-7 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The Mean Melting Temperature Range was determine to be 290-295.1°C at 963.8 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
290 °C

Additional information

The melting point determination of Test item 5-amino-2-chlorobenzenesulphonic acid (CAS No. 88-43-7 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The Mean Melting Temperature Range was determine to be 290-295.1°C at 963.8 hPa.

From the other authorative database melting point of 5 -amino-2 -chlorobenzenesulfonic acid is greater than 310 Deg C.

Decomposition temperature of chemical 5-amino-2 -chlorobenzenesulfonic acid is determined to be 280.0 Deg C