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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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:
other: Study according to international accepted guideline but not GLP compliant.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2005
Report date:
2005

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
ASTM E537-98 (Newer version of ASTM E537-76)
Deviations:
no
GLP compliance:
no
Type of method:
thermal analysis
Remarks:
derivatography

Test material

Constituent 1
Chemical structure
Reference substance name:
2,3-dichlorobenzoic acid
EC Number:
200-039-5
EC Name:
2,3-dichlorobenzoic acid
Cas Number:
50-45-3
Molecular formula:
C7H4Cl2O2
IUPAC Name:
2,3-dichlorobenzoic acid
Test material form:
solid: crystalline
Details on test material:
Test item: 2,3-DICHLOROBENZOIC ACID
CAS No.: 50-45-3
Physical state: Solid, crystalline powder
Colour: White
Storage: 15-30°C, protected from moisture

Results and discussion

Melting / freezing point
Melting / freezing pt.:
167 °C
Atm. press.:
ca. 101 kPa
Decomposition:
yes
Remarks:
The weight loss is 2% up to 163°C and 100% up to 250°C.
Sublimation:
no

Applicant's summary and conclusion

Conclusions:
The melting point of 2,3-dichlorobenzoic acid (CAS: 50-45-3) is 167°C.