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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1976
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Database

Data source

Reference
Reference Type:
review article or handbook
Title:
Unnamed
Year:
2006

Materials and methods

Principles of method if other than guideline:
Not specified
GLP compliance:
no
Type of method:
method to determine freezing temperature

Test material

Constituent 1
Chemical structure
Reference substance name:
O-acetylsalicylic acid
EC Number:
200-064-1
EC Name:
O-acetylsalicylic acid
Cas Number:
50-78-2
Molecular formula:
C9H8O4
IUPAC Name:
2-acetoxybenzoic acid
Test material form:
solid: crystalline

Results and discussion

Melting / freezing point
Melting / freezing pt.:
136 °C
Atm. press.:
1 atm
Decomposition:
yes
Remarks:
Slightly higher than melting point
Decomp. temp.:
140 °C

Applicant's summary and conclusion

Conclusions:
The substance melting point is 136 °C. The decomposition temperature is 140 °C.