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Cadmium carbonate

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Identification
Molecular formula
CdCO3
CAS number
513-78-0
IUPAC name
cadmium(2+);carbonate
State
State

At room temperature, cadmium carbonate is in a solid state. It is not soluble in water and must be handled with care due to its toxic nature.

Melting point (Celsius)
0.00
Melting point (Kelvin)
0.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
172.42g/mol
Molar mass
172.4210g/mol
Density
4.2600g/cm3
Appearence

Cadmium carbonate is a white, crystalline compound. It appears as a fine or bulky powder with no significant odor.

Comment on solubility

Solubility of Cadmium(II) Carbonate

Cadmium(II) carbonate, represented by the chemical formula CdCO3, exhibits limited solubility in water. This property can be attributed to various factors:

  • Nature of the Compound: As a carbonate salt, cadmium(II) carbonate is generally less soluble compared to more soluble alkali metal carbonates.
  • Temperature Dependence: Like many inorganic salts, the solubility of cadmium(II) carbonate can be influenced by temperature; however, it remains relatively low even at elevated temperatures.
  • pH Effect: The solubility can also be affected by the pH of the solution. In alkaline environments, cadmium(II) carbonate may react to form soluble cadmium hydroxide, increasing the solubility indirectly.

To emphasize, cadmium(II) carbonate is characterized by its low solubility, making it less bioavailable and often considered a less hazardous compound compared to its more soluble counterparts. Its solubility product (Ksp) is notably low, which confirms its limited dissolvable nature:

  • The low solubility product implies a tendency for cadmium(II) carbonate to precipitate in aqueous solutions.
  • This characteristic can be particularly significant in environmental contexts, where it may affect cadmium mobility and bioaccumulation.

In summary, while cadmium(II) carbonate has limited water solubility, its behavior in various chemical environments reflects the complexity of its interactions and potential implications in both ecological and industrial settings.

Interesting facts

Interesting Facts About Cadmium(II) Carbonate

Cadmium(II) carbonate is a compound that garners attention not only for its chemical properties but also for its significance in various industrial applications. Here are some intriguing aspects:

  • Composition: This compound consists of cadmium in a +2 oxidation state combined with carbonate ions. The presence of cadmium adds some unique characteristics to the compound, making it an interesting subject of study.
  • Usage in Industry: Cadmium(II) carbonate is primarily used as a precursor for manufacturing cadmium pigments. These pigments are known for their vivid colors and durability, widely used in ceramics, glass, and plastics.
  • Environmental Considerations: While cadmium is valuable for various applications, it also poses environmental and health concerns. As such, the handling and disposal of cadmium compounds, including cadmium carbonates, must be done with caution to mitigate potential toxicity.
  • Analytical Importance: Cadmium(II) carbonate plays a pivotal role in analytical chemistry, often utilized in studies involving cadmium ion concentration in various solutions.
  • Complexity of Cadmium Compounds: Cadmium enters the matrix of various complex compounds in chemistry and can impact the properties and interactions of those compounds significantly. Its behavior in different reactions can provide essential insights into coordination chemistry and catalysis.

As scholars and students delve into the realm of cadmium compounds, it's essential to keep in mind both their applications and the precautions necessary when working with them. Understanding the dual nature of cadmium (its usefulness and its hazards) is crucial for their responsible use in scientific and industrial contexts.

Synonyms
CADMIUM CARBONATE
Mikrokalcit
Cadmium monocarbonate
Carbonic acid, cadmium salt (1:1)
Kalcit
Otavite
Supermikrokalcit
Chemcarb (CdCO3)
Caswell No. 134A
Cadmium carbonate (CdCO3)
HSDB 1612
UNII-616ZVS3BLY
EINECS 208-168-9
616ZVS3BLY
NSC 83510
EPA Pesticide Chemical Code 012901
Carbonic acid, cadmium(2+) salt (1:1)
AI3-51839
Carbonic acid cadmium salt (1:1)
EINECS 298-586-8
CADMIUM CARBONATE [MI]
CADMIUM CARBONATE [HSDB]
DTXSID60883417
EC 208-168-9
NSC-83510
93820-02-1
CdCO3
cadmium(2+) carbonate
Cadmium carbonic acid
Caswell No 134A
cadmium(II) carbonate
cadmium(2+) ion carbonate
DTXCID001022948
USEPA/OPP Pesticide Code: 012901
208-168-9
298-586-8
un2570
513-78-0
CADMIUMCARBONATE
MFCD00010918
Cadmium Carbonate; Chemcarb; Kalcit; Mikrokalcit; Supermikrokalcit
cadmium(2+);carbonate
Carbonic acid,cadmium salt
SCHEMBL21304
Cadmium carbonate, Puratronic?
Cadmium carbonate, powder, 98%
BCP21721
AKOS015836319
DB-264613
NS00080429
NS00092440
Q1025288
Cadmium carbonate, powder and chunks, >=99.996% trace metals basis