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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
publication
Title:
Chloroform-d (Deuteriochloroform)
Author:
Breuer, F.W.
Year:
1935
Bibliographic source:
Journal of the American Chemical Society, 57, p. 2236-7

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Freezing and melting point determinations on a (2H)chloroform sample were run, and compared with (1H)chloroform.
The determinations were carried out in a double-jacketed container with air insulation. A copper-constantan thermopile of 2 couples enclosed in a flattened platinum tube was used with a glass container of similar shape which by the reduced volume allowed the entire thermopile to be covered with the liquid. The determinations were carried out under a pressure of 3 mm. to ensure removal of all gases which might have been formed.
GLP compliance:
no
Type of method:
method to determine freezing temperature

Test material

Constituent 1
Chemical structure
Reference substance name:
(2H)chloroform
EC Number:
212-742-4
EC Name:
(2H)chloroform
Cas Number:
865-49-6
Molecular formula:
CCl3D
IUPAC Name:
chloroform
Test material form:
liquid

Results and discussion

Melting / freezing pointopen allclose all
Key result
Melting / freezing pt.:
-64.69 - -64.15 °C
Atm. press.:
4 hPa
Decomposition:
no
Remarks on result:
other: melting point
Melting / freezing pt.:
-64.12 °C
Atm. press.:
4 hPa
Decomposition:
no
Remarks on result:
other: freezing point

Any other information on results incl. tables

The observed values indicate that (2H)chloroform (melting point -64.69 - -64.15 °C) melts lower compared to (1H)chloroform (melting point = -63.77 - -63.33 °C), which is in accordance with the lower melting points of other organodeuterium compounds.

Applicant's summary and conclusion

Conclusions:
melting point -64.69 - -64.15 °C at 4 hPa
freezing point -64.12 °C at 4 hPa

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