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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The Freezing point determination of test chemical was done using crushed ice and salt.
GLP compliance:
no
Type of method:
other: Freezing Temperature Method (cruched ice and salt)
Key result
Melting / freezing pt.:
< -14.83 °C
Atm. press.:
971.1 hPa
Decomposition:
no
Sublimation:
no
Remarks on result:
other: Freezing Temperature Method

Method Details

 

Observations

Remarks if,

any

Method

Freezing Temperature Method

-

 

Principle of Freezing point

test

 

The freezing point of a pure sample is the temperature at which transition from liquid to solid state takes place at atmospheric pressure.

 

Quantity of test item used

g

1ml

Type of cooling bath used

  •       Cold Water
  • Crushed Ice
  • Crushed Ice-Salt
  • Dry Ice
  • Other (specify)    

Crushed Ice-Salt

 

Type and model no. of

Temperature sensor used

 

      

  • Glass thermometer
  • Thermocouple
  • Thermistor
  • Other (specify)
 

        

 

        

Glass thermometer

Atmospheric

pressure

hPa

971.1 hPa

Freezing point °C

°C

less than - 14.83 °C

Conclusions:
The Freezing point of test chemical was determined using Freezing Temperature Method. No freezing was observed up to -14.83 °C.
Executive summary:

The Freezing point determination of test chemical was done using Freezing Temperature Method (crushed ice and salt). No freezing was observed up to -14.83°C. Hence, the freezing point was inferred to be less than -14.83°C at 971.1 hPa.

Description of key information

The Freezing point determination of test chemical was done using Freezing Temperature Method (crushed ice and salt). No freezing was observed up to -14.83°C. Hence, the freezing point was inferred to be less than -14.83°C at 971.1 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-14.83 °C

Additional information

The Freezing point determination of test chemical was done using Freezing Temperature Method (crushed ice and salt). No freezing was observed up to -14.83°C. Hence, the freezing point was inferred to be less than -14.83°C at 971.1 hPa.