Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 222-477-6 | CAS number: 3486-35-9
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- other: Review article
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Review article - several methods specified
- Water solubility:
- 131.7 mg/L
- Temp.:
- 298.15 K
- pH:
- 6
- Remarks on result:
- other: Calculated using thermodynamic data including carbonic acid dissociation constants.
- Water solubility:
- 25 mg/L
- Temp.:
- 298.15 K
- pH:
- 7
- Remarks on result:
- other: Calculated using thermodynamic data including carbonic acid dissociation constants.
- Water solubility:
- 7.2 mg/L
- Temp.:
- 298.15 K
- pH:
- 8
- Remarks on result:
- other: Calculated using thermodynamic data including carbonic acid dissociation constants.
- Water solubility:
- 0.2 mg/L
- Temp.:
- 298.15 K
- pH:
- 9
- Remarks on result:
- other: Calculated using thermodynamic data including carbonic acid dissociation constants.
- Water solubility:
- 0.9 mg/L
- Temp.:
- 298.15 K
- pH:
- 10
- Remarks on result:
- other: Calculated using thermodynamic data including carbonic acid dissociation constants.
- Water solubility:
- 0.5 mg/L
- Temp.:
- 298.15 K
- pH:
- 11
- Remarks on result:
- other: Calculated using thermodynamic data including carbonic acid dissociation constants.
- Water solubility:
- 0.5 mg/L
- Temp.:
- 298.15 K
- pH:
- 12
- Remarks on result:
- other: Calculated using thermodynamic data including carbonic acid dissociation constants.
- Water solubility:
- 0.5 mg/L
- Temp.:
- 298.15 K
- pH:
- 13
- Remarks on result:
- other: Calculated using thermodynamic data including carbonic acid dissociation constants.
- Key result
- Water solubility:
- 20.6 mg/L
- Conc. based on:
- not specified
- Temp.:
- 298.15 K
- Remarks on result:
- other: CO2 partial pressure = 0.00032 bar
- Details on results:
- The solubility of zinc carbonate depends on temperature, ionic strength, pH, and partial pressure of carbon dioxide. CO2 partial pressure = 0.00032 bar.
- Endpoint:
- water solubility
- Type of information:
- other: Handbook data
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Handbook data - no method specified
- Key result
- Water solubility:
- ca. 0.57 mg/L
- Remarks on result:
- other: no further data available
- Endpoint:
- water solubility
- Type of information:
- other: Review article
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Justification for type of information:
- Reference to the literature
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Review article - several methods specified
- Water solubility:
- ca. 12.54 mg/L
- Conc. based on:
- not specified
- pH:
- 7.4
- Remarks on result:
- other: Calculated using thermodynamic data
- Water solubility:
- ca. 1.254 g/L
- Conc. based on:
- not specified
- pH:
- 6
- Remarks on result:
- other: Calculated using thermodynamic data
- Details on results:
- Zinc carbonate solubility as a function of pH is shown in in the attachment. Zinc carbonate is a thermodynamically stable solid at pH values less than 7.4.
Zinc carbonate will partially hydroxylate to hydrozincite in pH ranges between 7.4 and 12.4, and above a pH of 12.4, its amorphous form, (Zn(OH)2), becomes the predominant species.
Referenceopen allclose all
Description of key information
The solubility of zinc carbonate depends on temperature, ionic strength, pH, and partial pressure of carbon dioxide.
Key value for chemical safety assessment
- Water solubility:
- 20.6 mg/L
- at the temperature of:
- 298.15 K
Additional information
Key value is related to pH 7 (ca.) and a CO2 partial pressure = 0.00032 bar.
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