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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Water solubility

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Administrative data

Link to relevant study record(s)

water solubility
Type of information:
experimental study
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
no guideline followed
Principles of method if other than guideline:
no data
GLP compliance:
not specified
Type of method:
other: not indicated
Specific details on test material used for the study:
Calcium nitrate fertiliser is commonly used as a synonym for nitric acid, ammonium calcium salt.
Key result
Remarks on result:
other: The test substance is hygroscopic
Details on results:
Very soluble in water.

The test substance is hygroscopic.The critical humidity is 38-40 % at 25 °C. This means that the product normally absorbs moisture and becomes wet and dissolves if exposed to air at normal weather conditions.
The substance is very soluble in water (> 10000 mg/L).

Description of key information

The substance is very soluble in water.

Key value for chemical safety assessment

Water solubility:
100 g/L

Additional information