4 years ago. … Lv 7. Structure and Stability of the New Compound Ca, Ullmann's Encyclopedia of Industrial Chemistry, "How can we convert calcium sulfite into calcium sulfate after...", "The crystal structure of calcium sulfite hemihydrate", https://www.ima-mineralogy.org/Minlist.htm, https://en.wikipedia.org/w/index.php?title=Calcium_sulfite&oldid=988028852, Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Chemical articles with multiple CAS registry numbers, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, This page was last edited on 10 November 2020, at 17:04. [1][10], Calcium sulfate(IV) hemihydrate occurs in the nature as the rare mineral hannebachite. It is most notable as the product of flue-gas desulfurization. 10257-55-3. 7 Answers. Calcium polysulfide. UNII-87N1QVL75L. Molecular Formula. Sulfurous acid, calcium salt (1:1) UNII-7078964UQP. A typical US home contains 7 metric tons of such drywall gypsum board.[5]. From Wikipedia. The mixed sulfite-sulfate represents an intermediate in the oxidation of the sulfite to the sulfate, as is practiced in the production of gypsum. In chemical industry: The Leblanc process. All forms are white solids. The resulting calcium sulfite oxidizes in air to give gypsum: The gypsum, if sufficiently pure, is marketable as a building material. calcium + sulfur ---> calcium sulfide. Flue gas often contains SO2, whose emission is often regulated to prevent acid rain. Synonyms. Calcium sulphite. 9046-53-1. In the crystal, each S 2− ion is surrounded by an octahedron of six Ca 2+ ions, and complementarily, each Ca 2+ ion surrounded by six S 2− ions. [9] These studies show that sulfite anion adopts its characteristic pyramidal geometry. Favorite Answer . Answer Save. Chemical wood pulping is the removal of cellulose from wood by dissolving the lignin that binds the cellulose together. It has a high melting point of 2,525 Celsius (4,577 °F; 2,798 Kelvin), and decomposes upon contact with water. Scrubbing with limestone follows the following idealized reaction: Scrubbing with hydrated lime follows the following idealized reaction:[3][4]. Calcium sulfite can be used in the production of wood pulp through the sulfite process, as an alternative to the Kraft process that uses hydroxides and sulfides instead of sulfites. [6], There is a possibility to use calcium sulfite to produce gypsum by oxidizing (adding O2) it in water mixture with the manganese (Mn2+) cation or sulfuric acid catalyzers. Source(s): My brain and a bunch of books. [1] All forms are white solids. anonymous. Relevance. Molecular Formula. It is most notable as the product of flue-gas desulfurization. ›› Calcium Sulfide molecular weight. Calcium sulfite. Calcium sulfide is a chemical compound made of one calcium atom and one sulphide atom. Calcium and sulfur will react in a 1:1 ratio to form calcium sulfide with the formula CaS. DB11211. Source(s): … 8 years ago. Synonyms. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo). We put the two ions together to complete the Lewis structure for CaS. 74.16 g/mol. Sulfur dioxide is scrubbed before the remaining gases are emitted through the chimney stack. CALCIUM HYDROGEN SULFIDE. C17392. CTK5G7899. CaS5. How to Draw the Lewis Dot Structure for CaS : Calcium sulfide [7][8], The structure of calcium sulfite has been examined by X-ray crystallography. The formula for calcium sulfide? When calcium reacts with chlorine what does it form? It is white and forms cubes. Component Compounds. Component Compounds. Calcium Sulfur. Screen capture done with Camtasia Studio 4.0. The tetrahydrate crystallizes as a solid solution of Ca3(SO3)2(SO4).12H2O and Ca3(SO3)2(SO3).12H2O. Convert grams Calcium Sulfide to moles or moles Calcium Sulfide to grams. Synonyms. Anonymous. CID 5460341 (Calcium) CID 29109 (Sulfide) An economical way of scrubbing SO2 from flue gases is by treating the effluent with Ca(OH)2 hydrated lime or CaCO3 limestone.[2]. The Ca2+ centers have high coordination numbers, being bonded to the sulfite oxygen atoms and the water, giving calcium a coordination number of eight. When coal or other fossil fuel is burned, the byproduct is known as flue gas. Answer Save. 4(H2O). Chemsrc provides calcium sulfide(CAS#:20548-54-3) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Calcium sulfide. Calcium polysulphide. CaSO3·2H2O or CaSO3 or CaO3S. CaCl2 Calcium Chloride A chemical reaction occurs when solid calcium reacts with solid sulfur to produce solid calcium sulfide. Molecular Weight. Because calcium sulfide contained in the black ash had a highly unpleasant odour, methods were developed to remove it by recovering the sulfur, thereby providing at least part of the raw material for the sulfuric acid required in the first part of the process. Sulfites are strong reducers in solution, they act as oxygen scavenger antioxidants to preserve food, but labeling is required as some individuals might be hypersensitive. Many of these formula units make up a crystal lattice. We’ll first draw the metal and put it in brackets with its charge on the outside (video: finding ionic charge: https://youtu.be/M22YQ1hHhEY).Next, we'll draw the Lewis Structure for the S 2- ion and add brackets. Relevance. 72.15 g/mol. Favorite Answer. Note that CaS is also called Calcium sulfide.For a complete tutorial on drawing Lewis Structures, see my video: https://youtu.be/1ZlnzyHahvoFor more practice, see https://youtu.be/DQclmBeIKTcTo learn to find the valence electrons: https://youtu.be/VBp7mKdcrDkNote that is it more common to draw Lewis Structures for covalent (molecular) compounds where valance electrons are shared. It has the chemical formula CAS.