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Physical & Chemical properties

Water solubility

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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.

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.