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Carbon disulfide (also spelled as carbon disulphide) is an inorganic compound with the chemical formula CS 2 and structure S=C=S.It is also considered as the anhydride of thiocarbonic acid. [8]
Caesium carbonate or cesium carbonate is a chemical compound with the chemical formula Cs 2 C O 3.It is white crystalline solid. Caesium carbonate has a high solubility in polar solvents such as water, ethanol and DMF.
This treatment produced a black solution that after filtration and evaporation gave a cherry-red liquid. He determined the molecular mass by cryoscopy. Later preparations of C 3 S 2 include thermolysis of a stream of CS 2 in a quartz tube heated to 900 to 1100 °C as well as flash vacuum pyrolysis (FVP) of 1,2-dithiole-3-thiones. [4]
Similar to sodium sulfide, anhydrous cesium sulfide can be produced by reacting cesium and sulfur in THF.It needs ammonia or naphthalene to react. [4]2 Cs + S → Cs 2 S. By dissolving hydrogen sulfide into cesium hydroxide solution, it will produce cesium bisulfide, then it will produce cesium sulfide too.
Caesium oxide is used in photocathodes to detect infrared signals in devices such as image intensifiers, vacuum photodiodes, photomultipliers, and TV camera tubes [3] L. R. Koller described the first modern photoemissive surface in 1929–1930 as a layer of caesium on a layer of caesium oxide on a layer of silver. [4]
Molecular species: Groups of atoms that are held together by chemical bonds. An example is ozone, which has the chemical formula O 3. [6] Ionic species: Atoms or molecules that have gained or lost electrons, resulting in a net electrical charge that can be either positively (cation) or negatively charged (anion).
Therefore, this group of copper sulfides shows ionic conductivity at slightly elevated temperatures. In addition, the majority of its members are semiconductors. Mixed monosulfide and disulfide compounds of copper contain both monosulfide (S 2−) as well as disulfide (S 2) n− anions. Their crystal structures usually consist of alternating ...
Calcium iodide (chemical formula CaI 2) is the ionic compound of calcium and iodine. This colourless deliquescent solid is a salt that is highly soluble in water. Its properties are similar to those for related salts, such as calcium chloride. It is used in photography. [1] It is also used in cat food as a source of iodine.