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Calcium sulfide

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Identification
Molecular formula
CaS
CAS number
20548-54-3
IUPAC name
thioxocalcium
State
State

Calcium sulfide is typically a solid at room temperature. It is a stable compound that exists in a crystalline form, though its stability can be compromised upon exposure to moisture. When kept dry, it maintains its solid state effectively at standard temperature and pressure.

Melting point (Celsius)
2 525.00
Melting point (Kelvin)
2 798.00
Boiling point (Celsius)
2 200.00
Boiling point (Kelvin)
2 473.00
General information
Molecular weight
72.15g/mol
Molar mass
72.1450g/mol
Density
2.5900g/cm3
Appearence

Calcium sulfide typically appears as a white to yellowish-white powder or crystalline solid. Its color may vary depending on the presence of impurities. It is often provided in microcrystalline form and has a somewhat chalky texture. Its appearance can also change slightly when exposed to moisture or humidity due to its tendency to hydrolyze.

Comment on solubility

Solubility of Thioxocalcium

Thioxocalcium, identified by its chemical formula, exhibits unique solubility characteristics that are noteworthy for both practical and scientific contexts. This compound is generally categorized under the sulfides, which typically demonstrates varying degrees of solubility. Here are some key points to consider:

  • Solubility in Water: Thioxocalcium is largely considered to be insoluble in water, which is common for many calcium-containing compounds.
  • Organic Solvents: In contrast, it may exhibit some degree of solubility in non-polar organic solvents, although specific interactions can vary widely.
  • Influence of pH: The solubility may also be affected by the pH of the solution, with acidic conditions promoting its dissolution in certain environments.
  • Precipitation Reactions: In situations where thioxocalcium reacts with other chemicals, it may precipitate out of solution, further complicating its solubility profile.

In summary, the solubility of thioxocalcium is influenced by environmental factors and the chemical context, leading to a complex behavior in various solvents. As with many compounds, understanding these nuances is critical for applications in both industrial and laboratory settings.

Interesting facts

Interesting Facts about Thioxocalcium

Thioxocalcium is a fascinating compound that has captured the interest of chemists and researchers alike. Here are some intriguing details about this unique substance:

  • Composition: Thioxocalcium is formed from calcium and sulfur, meaning it possesses both metallic and non-metallic characteristics. This combination opens up various paths for investigation into its properties and applications.
  • Reactivity: The presence of sulfur atoms can influence the reactivity of thioxocalcium, making it an interesting subject for studying redox reactions and its potential role as a reducing agent in various chemical processes.
  • Applications: Although not as widely known as some other calcium compounds, thioxocalcium has potential uses in industries such as:
    • Agriculture: As a possible micronutrient for plants.
    • Chemical synthesis: In the production of sulfide compounds due to its sulfur content.
  • Research Potential: Scientists are exploring the applications of thioxocalcium in materials science, especially in creating novel materials with unique electronic properties. The ability of elements like calcium and sulfur to form diverse structures is a focus of ongoing research.
  • Health Implications: Understanding how compounds like thioxocalcium interact at a cellular level can drive advancements in fields such as biochemistry and environmental science. As with many chemical compounds, studying thioxocalcium’s biological effects is essential for assessing its safety and efficacy in various applications.

In conclusion, thioxocalcium is more than just an obscure compound; it represents the intriguing intersection of metals and non-metals, offering potential insights in both fundamental and applied chemistry. This compound not only contributes to our understanding of elemental chemistry but also sparks curiosity about its future uses.

Synonyms
Oldhamite
12015-71-3
RefChem:168063
sulfanylidenecalcium
UNII-1MBW07J51Q
SCHEMBL29349829
CS-B1711
EINECS 243-873-5
AKOS015903502
Q408464
Calcium sulfide, -325 mesh, >=99.9% trace metals basis