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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Justification for type of information:
Calcium is highly reactive in water. In powdered form, the reaction with water is extremely rapid. In water reaction calcium is forming insoluble calcium hydroxide. In water solutions of acids where the salt is water soluble, calcium reacts vigorously. Calcium metal is classified hazardous (DSD) because of violent reactions with water and acids. (References: Handbook of Chemistry and Physics, Lide, D. R., 2008, 89th edition, CRC Press Taylor&Francis Group, LLC United States of America; The Merck Index, O'Neil, Maryadele J. (ed.), 2006, 14th edition, Merck&Co., Inc. United States of America).
Qualifier:
no guideline followed
Principles of method if other than guideline:
References: Handbook of Chemistry and Physics, Lide, D. R., 2008, 89th edition, CRC Press Taylor&Francis Group, LLC United States of America; The Merck Index, O'Neil, Maryadele J. (ed.), 2006, 14th edition, Merck&Co., Inc. United States of America
Key result
Temp.:
20 °C
pH:
ca. 7
Remarks on result:
other: Calcium is highly reactive in water forming very rapidly Calcium hydroxide.
Details on results:
Calcium is highly reactive in water. In powdered form, the reaction with water is extremely rapid. In water reaction calcium is forming insoluble calcium hydroxide. In water solutions of acids where the salt is water soluble, calcium reacts vigorously. Calcium metal is classified hazardous (DSD) because of violent reactions with water and acids. (References: Handbook of Chemistry and Physics, Lide, D. R., 2008, 89th edition, CRC Press Taylor&Francis Group, LLC United States of America; The Merck Index, O'Neil, Maryadele J. (ed.), 2006, 14th edition, Merck&Co., Inc. United States of America).
Conclusions:
Calcium is highly reactive in water. In powdered form, the reaction with water is extremely rapid. In water reaction calcium is forming insoluble calcium hydroxide. In water solutions of acids where the salt is water soluble, calcium reacts vigorously. Calcium metal is classified hazardous (DSD) because of violent reactions with water and acids. (References: Handbook of Chemistry and Physics, Lide, D. R., 2008, 89th edition, CRC Press Taylor&Francis Group, LLC United States of America; The Merck Index, O'Neil, Maryadele J. (ed.), 2006, 14th edition, Merck&Co., Inc. United States of America).

Description of key information

Calcium is highly reactive in water. In powdered form, the reaction with water is extremely rapid. In water reaction calcium is forming insoluble calcium hydroxide. In water solutions of acids where the salt is water soluble, calcium reacts vigorously. Calcium metal is classified hazardous (DSD) because of violent reactions with water and acids. (References: Handbook of Chemistry and Physics, Lide, D. R., 2008, 89th edition, CRC Press Taylor&Francis Group, LLC United States of America; The Merck Index, O'Neil, Maryadele J. (ed.), 2006, 14th edition, Merck&Co., Inc. United States of America).

Key value for chemical safety assessment

Additional information