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Calcium sulfite

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Identification
Molecular formula
CaSO3
CAS number
10257-55-3
IUPAC name
calcium;dioxido-oxo-thioxo-lambda6-sulfane
State
State

Calcium sulfite is a solid at room temperature. It is typically encountered as a powder or crystal, and it is generally stable under normal conditions.

Melting point (Celsius)
0.00
Melting point (Kelvin)
0.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
120.17g/mol
Molar mass
120.1700g/mol
Density
2.3000g/cm3
Appearence

Calcium sulfite appears as a white or grayish-white powder. It may also be encountered as a fine, granular material or in crystalline form. Its appearance may vary slightly based on the level of impurities present in the sample.

Furthermore, calcium sulfite can occur in different hydrated forms, the most common being the hemihydrate (CaSO3·0.5H2O).

Comment on solubility

Solubility of Calcium Dioxido-Oxo-Thioxo-Lambda6-Sulfane (CaSO3)

Calcium dioxido-oxo-thioxo-lambda6-sulfane, commonly known as calcium sulfite, exhibits some interesting solubility properties that are important in various chemical and industrial processes.

Solubility Characteristics

  • Water Solubility: Calcium sulfite is slightly soluble in water. Its solubility can vary depending on the temperature and the presence of other ions.
  • Temperature Dependence: As the temperature increases, the solubility of CaSO3 in water tends to increase, a common behavior among many salts.
  • pH Sensitivity: The solubility of CaSO3 is also influenced by the pH of the solution, with higher pH levels generally leading to increased solubility due to the formation of complex ions.
  • Precipitation: In many cases, this compound can precipitate out of solution when calcium ions and sulfite ions become supersaturated, resulting in solid calcium sulfite.

Understanding the solubility of calcium sulfite is crucial, especially in environmental science and industrial applications, where it may play a role in processes such as flue gas desulfurization.
This knowledge allows for effective manipulation of its solubility in various scenarios.

Interesting facts

Interesting Facts About Calcium Dioxide (Dioxido-oxo-thioxo-lambda6-sulfane)

Calcium dioxido-oxo-thioxo-lambda6-sulfane, commonly known as calcium sulfite, is an intriguing compound with a variety of applications and properties that make it notable in the field of chemistry.

Key Features:

  • Environmental Impact: Calcium sulfite plays a significant role in environmental chemistry, particularly in the context of air pollution control. It is often used in the flue gas desulfurization process to remove sulfur dioxide (SO2) from emissions, contributing to cleaner air.
  • Food and Beverage: In some instances, calcium sulfite is used as a preservative in the food and beverage industry, particularly in dried fruits. Its properties allow it to prevent spoilage and maintain freshness.
  • Industrial Uses: This compound is also used in the production of plaster and as a reducing agent in various chemical reactions. Its versatility in industrial applications makes it valuable in construction and material sciences.

Scientific Insights:

From a scientific perspective, calcium sulfite can be viewed as a bridging compound between different chemical processes. It acts as both a sulfur source and a means of incorporating calcium, showcasing the interconnectedness of chemical elements and their interactions. As chemist Robert H. Grubbs once noted, "Chemistry is the soul of technology." This is truly apparent in the multifaceted uses of calcium sulfite.

Possibilities and Future Research:

Future research may delve into innovative applications of calcium sulfite, especially in areas such as renewable energy and sustainable materials. The exploration of its potential in carbon capture technology could open new avenues for mitigating climate change.

In summary, calcium dioxido-oxo-thioxo-lambda6-sulfane is more than just a simple inorganic compound; it embodies the interplay of chemistry with environmental science, food technology, and industrial innovation.

Synonyms
CALCIUM THIOSULFATE
Calcium thiosulphate
Calcium hyposulfite
Caswell No. 153
Thiosulfuric acid (H2S2O3), calcium salt (1:1)
Thiosulfuric acid, calcium salt (1:1)
HSDB 2507
Calcium thiosulfate (Ca(S2O3))
EINECS 233-333-7
EPA Pesticide Chemical Code 080101
UNII-2IO10O728E
2IO10O728E
CALCIUM THIOSULFATE [MI]
DTXSID2034415
CALCIUM THIOSULFATE [HSDB]
EC 233-333-7
CALCIUM THIOSULFATE [CA(S2O3)]
THIOSULFURIC ACID [H2S2O3], CALCIUM SALT (1:1)
DTXCID0014415
10124-41-1
calcium;dioxido-oxo-sulfanylidene-lambda6-sulfane
Calciumthiosulfat
SCHEMBL119418
SCHEMBL119419
FAYYUXPSKDFLEC-UHFFFAOYSA-L
NS00080467
Q16706145