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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:
23/09/2015 – 24/09/2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard OECD 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 substance 2,4,6-Trichloroaniline (CAS No. 634-93-5) was done as per the test guideline OECD 102 via Capillary/metal block method.
GLP compliance:
not specified
Type of method:
other: Capillary/metal block method
Specific details on test material used for the study:
- Name of test material: 2,4,6-trichloroaniline
- IUPAC name: 2,4,6-Trichloroaniline
- Molecular formula : C6H4Cl3N
- Molecular weight : 196.464 g/mol
- Smiles: c1(c(cc(Cl)cc1Cl)Cl)N
- InChI: 1S/C6H4Cl3N/c7-3-1-4(8)6(10)5(9)2-3/h1-2H,10H2
- Substance type: Organic
- Physical state: Solid crystalline (Pale White to Reddish)
- Purity: >99.9%
Key result
Melting / freezing pt.:
>= 75 - <= 82 °C
Atm. press.:
974.4 hPa
Decomposition:
no
Sublimation:
no
Remarks on result:
other: other details not mentioned

TEST DESCRIPTION AND RESULTS

Method Details

Observations

Remarks if, any

Guideline

OECD 102

-

 

 

Method

Capillary/metal block

-

Principle of method

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

-

Grinding of substance done

 

·      Yes

Atmospheric pressure

(in hPa)

 

 974.4 hPa

Decomposition

 

Decomposition temperature(°C), if applicable

·     No

Sublimation

Sublimation temperature (°C), if applicable

 

·     No

Mean Melting point (°C)(RESULT)

 

-

Mean Melting point range (°C), if applicable

 

75°C - 82°C

Conclusions:
The melting point range of 2, 4, 6-trichloroaniline (CAS No. 634-93-5) is 75°C - 82°C at 974.4 hPa.
Executive summary:

The melting point determination of test substance 2, 4, 6-Trichloroaniline (CAS No. 634-93-5) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The mean melting point range was found to be in the range of 75°C- 82°C at 974.4 hPa.

Description of key information

The melting point range of 2, 4, 6-trichloroaniline (CAS No. 634-93-5) is 75°C - 82°C at 974.4 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
75 °C

Additional information

The melting point determination of test substance 2, 4, 6-Trichloroaniline (CAS No. 634-93-5) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The mean melting point range was found to be in the range of 75°C- 82°C at 974.4 hPa.

Other supporting data from reliable handbooks and authoritative databases, also supported the selected key study and exhibited the melting point of  2,4,6-trichloroaniline (CAS No. 634-93-5) as 78.5°C, 73 -75 °C and 77.5 -78.5 °C respectively, closer to the selected key value.