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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Link to relevant study record(s)

melting point/freezing point
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
weight of evidence
Justification for type of information:
Target and source substances are highly similar, both structurally and chemically.
Reason / purpose for cross-reference:
read-across source
according to guideline
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
Remarks on result:
not determinable
No melting point could be referred to the test item. The melting/freezing point must be considered as lower than -150°C, as no thermal effect and no crystallisation enthalpy could be observed.
No melting point could be referred to LOWER-7.
Executive summary:
Uronium hydrogen sulphate was tested according to OECD guideline 102 (non-GLP).

No melting/freezing point could be referred to the test item up to -150°C.

Description of key information

No melting/freezing point could be referred to the test item up to -150°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-150 °C

Additional information