(Z)-1,3-dichloropropene

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

31 Jan 1990 to 7 March 1990

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: GLP study following recognised guideline but with less than complete reporting.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1990

Report date:

1990

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

yes

Remarks:

pressure not stated

GLP compliance:

yes (incl. QA statement)

Type of method:

method to determine freezing temperature

Test material

Test material information

Constituent 1

Reference substance name:

(Z)-1,3-dichloropropene

EC Number:

233-195-8

EC Name:

(Z)-1,3-dichloropropene

Cas Number:

10061-01-5

Molecular formula:

C3H4Cl2

IUPAC Name:

1,3-dichloroprop-1-ene

Details on test material:

Batch number 2364 of purity 98.1% w/w

Results and discussion

Melting / freezing point

Melting / freezing pt.:

-85 °C

Any other information on results incl. tables

Cooling in the above mixture produced an increasingly viscous mass down to -89 ºC. At this temperature there was the start of

a phase change as the clear liquid formed a crystalline solid. In the duplicate tests a temperature increase, due to the latent heat of crystallisation, was observed at -93 and -93.5 ºC respectively. The freezing point, defined as the plateau region on the freezing point curve yielding at least five consecutive temperature readings which differ by ± l ºC or less was determined in duplicate to be -85 ºC (188 K) on both occasions.

Applicant's summary and conclusion

Conclusions:

The melting point/freezing point of CIS-l,3-DICHLOROPROPENE is -85 ºC.

Executive summary:

The freezing point have been determined for cis-l,3-dichloropropene technical grade material, 98.1 % w/w, batch number 2634. These tests were conducted in accordance with the OECD Guidlines for Testing of Chemicals (1981) and the requirements of the EEC Directive 84/449/EEC (Annex V). The melting point/freezing point of CIS-l,3-DICHLOROPROPENE is -85 ºC.