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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:
04-05-2018 – 04-05-2018
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 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 (IUPAC name): Sodium 2-amino-4,6-dinitrophenoxide
- Common name: Sodium picramate
- Molecular formula: C6H4N3NaO5
- Molecular weight: 221.1036 g/mol
- Smiles notation: [Na+].Nc1cc(cc(c1[O-])[N+](=O)[O-])[N+](=O)[O-]
- InChl: 1S/C6H5N3O5.Na/c7-4-1-3(8(11)12)2-5(6(4)10)9(13)14;/h1-2,10H,7H2;/q;+1/p-1
- Substance type: Organic
- Physical state: Solid
- Physical Appearance: red to brown moist powder
- Stability: Stable in recommended storage conditions
- Storage Conditions: 1. Ambient Temp (23 to 27 °C) √ (Store in a cool place. Keep containers tightly closed in a dry and well ventilated place)
Key result
Atm. press.:
972.5 hPa
Decomposition:
yes
Decomp. temp.:
>= 201.3 - <= 206.8 °C
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 

 972.5hPa

 Decomposition

 

Decomposition temperature

(°C), if applicable

 Yes

 Sublimation

 

Sublimation temperature

(°C), if applicable

NO 

 Mean

decomposition

temperature

 °C

 201.3-206.8°C
Conclusions:
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 Mean decomposition range was determine to be 201.3 - 206.8°C at 972.5 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 Mean decomposition range was determine to be 201.3 - 206.8°C at 972.5 hPa.

Description of key 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 Mean decomposition range was determine to be 201.3 - 206.8°C at 972.5 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
201.3 °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 Mean decomposition range was determine to be 201.3 - 206.8°C at 972.5 hPa.