chemical composition of gypsum

chemical composition of gypsum

  • Gypsum Wikipedia

    Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely mined and is used as a fertilizer, and as the main constituent in many forms of plaster, blackboard chalk and wallboard. A massive finegrained white or lightly tinted variety of gypsum, called alabaster, 


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  • What is Gypsum? Gypsum Association

    Today, almost half of all gypsum used in the United States is FGD gypsum. Natural gypsum and FGD gypsum have the same chemical composition, they are calcium sulfate dihydrate (CaSO4·2H2O). FGD gypsum production and sales encourages power producers to capture "waste" for reuse, rather than merely storing it.


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  • What is the chemical formula of gypsum? Quora

    CaSO4·2H2O Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely mined and is used as a fertilizer, and as the main constituent in many forms of plaster, blackboard chalk and wal


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  • Gypsum: Gypsum mineral information and data. Mindat.org

    The most common sulphate mineral. Found as both massive material, including the alabaster variety and clear crystals, the selenite variety and, parallel fibrous, the satin spar variety. Typically colourless to white, transparent crystals, thick tabular to lenticular, sometimes prismatic.


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  • Alabaster composition Alabaster

    Jan 10, 2013 The chemical composition of alabaster is the same as that of gypsum (dihydrate calcium sulphate). Arastone is an alabaster supplier company.


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  • Calcium sulfate CaSO4 PubChem

    Chemical Names: CALCIUM SULFATE 7778189 Drierite Gypsum Sulfuric acid, calcium salt (1:1) Karstenite More Molecular Formula: CaSO4· nH2O (n = 0 or 2) or CaSO4 or CaO4S. Molecular Weight: 136.134 g/mol. InChI Key: OSGAYBCDTDRGGQUHFFFAOYSAL. Drug Information: Therapeutic Uses Clinical 


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  • Satin Spar Gemstone & Information Gemopedia by JTV JTV.com

    The term satin spar has been used in the past to describe calcite and aragonite, however, it is currently accepted as one variety of the mineral gypsum, along with selenite and alabaster. In addition to its ornamental uses, gypsum is also a primary component in plaster and other building materials. Chemical Formula 


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  • Mineralogical and chemical properties of FGD gypsum from Florina

    BACKGROUND: The aim of this work is to define the chemical and mineralogical composition of the fuel gas desulphurization (FGD) gypsum produced from the Meliti thermal power plant in the region of Florina in North. West Greece, in order to investigate potential uses in the cement industry. Mineralogical and microprobe 


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  • Properties and Uses of Gypsum ScienceStruck

    Below here is a brief discussion on the uses and physical properties of gypsum, as well as how this mineral is formed in nature. How is Gypsum Formed? Gypsum is made up of oxygen, calcium, sulfur, and water, and its chemical formula is CaSO4·2H2O. Gypsum beds were formed due to the evaporation of water from the 


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  • Gypsum Mineral Data

    General Gypsum Information. Help on Chemical Formula: Chemical Formula: CaSO4•2(H2O). Help on Composition: Composition: Molecular Weight = 172.17 gm. Calcium 23.28 % Ca 32.57 % CaO. Hydrogen 2.34 % H 20.93 % H2O. Sulfur 18.62 % S 46.50 % SO3. Oxygen 55.76 % O. ______ ______. 100.00 % 100.00 


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  • Agricultural Gypsum SaintGobain Formula

    Agricultural Gypsum is a CE fertiliser grade gypsum obtained from naturally occurring mineral. It is used in a variety of agricultural appliions.


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  • Gypsum Mineral Data

    General Gypsum Information. Help on Chemical Formula: Chemical Formula: CaSO4•2(H2O). Help on Composition: Composition: Molecular Weight = 172.17 gm. Calcium 23.28 % Ca 32.57 % CaO. Hydrogen 2.34 % H 20.93 % H2O. Sulfur 18.62 % S 46.50 % SO3. Oxygen 55.76 % O. ______ ______. 100.00 % 100.00 


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  • Gypsum, selenite: The mineral gypsum information and pictures

    Gypsum has the same chemical composition as the mineral Anhydrite, but contains water in its structure, which Anhydrite lacks. Many Anhydrite specimens absorb water, transforming into the more common Gypsum. Some Gypsum specimens show evidence of this, containing growths of crumpling layers that testify to their 


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  • Gypsum: Its Occurrence, Origin, Technology and Uses (pp.47245)

    states, and is of considerable economic importance. Considered chemically, gypsum has foritsformulaCaS04 2HzO. Chemic"l.,Vlren it is pure the various constituents give the composition following percentages by weight: J,. Gypsum (CaSO.2H,O). 9South Australia, Department of Chemistry, Bulletin No. 7, Gypsum and 


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  • A Comparison of Properties of FGD and Natural Gypsum Products

    Oct 23, 2007 What is Gypsum? • Chemical formula CaSO. 4. ·2H. 2. O. • Color White to grey, pinkishred. • Crystal habit Massive, flat. Elongated and generally prismatic crystals. • Crystal system Monoclinic 2/m. • Mohs Scale hardness1.52. • Streak – White. • Specific gravity 2.31 2.33. • Solubility hot, dilute HCl 


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  • Gypsum Geology rocks and minerals

    gypsum (crystal). Chemical composition CaSO 42(H 2O) Hardness 2. Specific gravity 2.3. Transparency Transparent to translucent. Colour Usually white, colourless or grey, also shades of red, brown and yellow. Streak White Lustre Vitreous to pearly (especially on cleavage surfaces) Cleavage/fracture Perfect in 


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  • What is Gypsum? Gypsum Association

    Today, almost half of all gypsum used in the United States is FGD gypsum. Natural gypsum and FGD gypsum have the same chemical composition, they are calcium sulfate dihydrate (CaSO4·2H2O). FGD gypsum production and sales encourages power producers to capture "waste" for reuse, rather than merely storing it.


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  • University of Minnesota's Mineral Pages: Gypsum

    Chemical Composition, (CaSO42H2O) – Hydrated Calcium Sulfate. Color, Usually white, colorless or gray in massive form, crystals are clear, transparent to translucent. If impurities are present, gypsum may also appear to be red, brown or yellow. Cleavage, Good cleavage in one direction, only fair in two others to produce 


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  • Gypsum: Gypsum mineral information and data. Mindat.org

    The most common sulphate mineral. Found as both massive material, including the alabaster variety and clear crystals, the selenite variety and, parallel fibrous, the satin spar variety. Typically colourless to white, transparent crystals, thick tabular to lenticular, sometimes prismatic.


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  • Physicochemical properties of byproduct gypsum Wiley Online

    Four samples of byproduct gypsum were analysed by chemical and physical methods and subjected to CaS04tH20, hemihydrate, calcined gypsum, plaster of Paris (iii) orthorhombic calcium sulphate,. CaS04 The samples were initially dried to constant weight in an oven and their mineralogical composition determined 


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