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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
10/2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
no
Type of method:
thermal analysis
Remarks:
Differential Scanning Calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3-dihydroxyacetone
EC Number:
202-494-5
EC Name:
1,3-dihydroxyacetone
Cas Number:
96-26-4
Molecular formula:
C3H6O3
IUPAC Name:
1,3-dihydroxyacetone
Details on test material:
Purity: 100.2 %

Results and discussion

Melting / freezing point
Melting / freezing pt.:
ca. 96.5 °C
Atm. press.:
ca. 1 013 hPa
Decomposition:
yes
Decomp. temp.:
> 185 - < 235 °C
Remarks on result:
other: Melting from 70 - 130 °C

Applicant's summary and conclusion

Conclusions:
The mean melting point of DHA is 96.5 °C (range 70 - 130 °C). DHA decomposes above 185 °C (-235°C).
Executive summary:

The melting point of DHA was investigated in an OECD guideline 102 compliant study. The mean melting point of DHA is 96.5 °C (range 70 - 130 °C). DHA decomposes above 185 °C (-235°C).