Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1992
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Qualifier:
no guideline followed
Principles of method if other than guideline:
The melting point of trehalose is measured on a melting
point apparatus by placing the test sample powder in the
measurement tube.
GLP compliance:
not specified
Type of method:
capillary method
Specific details on test material used for the study:
Trehalose dihydrate (Wako Pure Chemical Industry, Ltd., Special grade, Purity: 100%)
Anhydrous trehalose (Crystal prepared by dissolution of trehalose dihydrate in pyridine and evaporation at 115°C, Purity: 100%)
Key result
Melting / freezing pt.:
97 °C
Atm. press.:
ca. 1 013 mBar
Decomposition:
no
Remarks on result:
other: Dihydrat
Key result
Melting / freezing pt.:
210.5 °C
Atm. press.:
ca. 1 013 mBar
Decomposition:
no
Remarks on result:
other: anhydrous form
Conclusions:
The melting point of trehalose in both the
anhydrous and dihydrate forms was measured in a melting point
testing apparatus. Results showed that the anhydrous form melted
at 210.5°C, while the dihydrate form melted at 97°C.

Description of key information

one study report available for both the anhydrous and dihydrate form.

Key value for chemical safety assessment is the melting point of Trehalose dihydrate

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
97 °C

Additional information