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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

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:
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)
GLP compliance:
no
Type of method:
capillary method
Specific details on test material used for the study:
- Name of test material: 2,2,2-Trichloroethane-1,1-diol (Chloral hydrate)
- Molecular formula: C2-H3-Cl3-O2
- Molecular weight: 165.4026g/mol
- Smiles notation: C(C(O)O)(Cl)(Cl)Cl
- InChl: RNFNDJAIBTYOQL-UHFFFAOYSA-N
- Substance type: Organic
- Physical state: Solid
Key result
Melting / freezing pt.:
55.3 °C
Atm. press.:
973.8 hPa
Decomposition:
no
Sublimation:
no

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)

 

 

973.8hPa

Decomposition

 

Decomposition temperature(°C), if applicable

 

     No

Sublimation

Sublimation temperature (°C), if applicable

 

 

     No

Melting point (°C)

(RESULT)

 

 

55.3 0C

Melting point range (°C), if applicable

 

 

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Conclusions:
The melting point determination of test substance 2, 2, 2-trichloroethane-1, 1-diol (CAS No. 302-17-0) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The mean melting point was found to be 55.3°C at 973.8hPa.
Executive summary:

The melting point determination of test substance 2, 2, 2-trichloroethane-1, 1-diol (CAS No. 302-17-0) was done as per the test guideline OECD 102. The method followed was according toCapillary/metal block. The mean melting point was found to be 55.3°C at 973.8hPa.

Description of key information

The melting point determination of test substance 2, 2, 2-trichloroethane-1, 1-diol (CAS No. 302-17-0) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The mean melting point was found to be 55.3°C at 973.8hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
55.3 °C

Additional information

The melting point determination of test substance 2, 2, 2-trichloroethane-1, 1-diol (CAS No. 302-17-0) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The mean melting point was found to be 55.3°C at 973.8hPa.

Other supporting data from different sources also indicates the melting point of 2,2,2-trichloroethane-1,1-diol to be in the range of 52 - 60 °C.