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CAS NUMBER: 10034-76-1
EC NUMBER: 600-067-1
MOLECULAR FORMULA: Ca2H2O9S2
MOLECULAR WEIGHT: 290.3
IUPAC NAME: dicalcium;disulfate;hydrate
Alpha Gypsum is obtained by heating of gypsum stone under high pressure and Alpha Gypsum is chemically same with CaSO4.1 / 2H2O formula and beta gypsum but different from in the point of crystal structure.
Structure of beta gypsum is needle-like and amorphous while crystal structure of Alpha Gypsum is geometric.
Alpha Gypsum shows that Alpha Gypsum as compare to beta gypsum appears to be fluidized when mixed with much less water than beta gypsum and Alpha Gypsum offers high strength properties.
Alpha Gypsum is preferred in different industrial applications by virtue of high mechanical strength.
Alpha Gypsum appears as white or yellowish, finely divided, odorless powder consisting mostly or entirely of calcium sulfate hemihydrate, CaSO4*1/2H2O.
Alpha Gypsum forms a paste when it is mixed with water that soon hardens into a solid.
Alpha Gypsum is used in making casts, molds, and sculpture
Alpha Gypsum is a calcium salt and a hydrate.
Alpha Gypsum is used for a variety of purposes including:
-building materials
-as a desiccant
-in dentistry as an impression material
-cast, or die
-in medicine for immobilizing casts
-as a tablet excipient
Alpha Gypsum exists in various forms and states of hydration.
Alpha Gypsum is a mixture of powdered and heat-treated gypsum.
Application Areas:
-Ceramic Molding Plaster
-Dental Plaster
-Screed Binder
-Construction Chemicals
-Orthopedic Plaster
-Architectural and Decorative Adornments
Alpha Gypsum is a common ingredient for making plaster.
Alpha Gypsum is made by processing gypsum stone into a fine powder and is well regarded for its strength and low absorptive levels.
How Alpha Gypsum's Made?
Alpha Gypsum is made by calcining gypsum stone under high pressure.
Calcination is a process that drives out the moisture in a substance by heating it to a specific temperature.
Alpha Gypsum is essentially used whenever more strength is needed, as alpha gypsum will harden to a degree that is much greater than normal plaster.
Alpha Gypsum can be added to increase the strength of the plaster even more.
Alpha Gypsum has good crystallinity and firmness.
When producing gypsum products, α-type semi-hydrated gypsum requires less water than β-type, and the products have higher compactness and strength.
Alpha Gypsum also known as high-strength gypsum, is steamed in a saturated steam medium.
DIFFERENT USAGE:
Alpha Gypsum is suitable for high-strength plastering projects, decorative products and gypsum board.
Alpha Gypsum can be used in a high humidity environment after mixed with water repellent.
Alpha Gypsum is made into a non-shrinking adhesive with the organic cementing agent.
Organic materials, such as polyvinyl chloride alcohol aqueous solution and polyvinyl acetate emulsion, can be formulated as cementing agents.
Alpha Gypsum is suitable for GRG, DIY plaster products, craft jewellery and various precision mould making.
OTHER APPLICATIONS:
-as a filler and binder in building materials
-in moulding gypsum
-in modelling gypsum
-in the ceramics industry
-in the manufacture of roofing tiles
-in the food industry
-in the manufacture of pharmaceuticals
-in the dental industry
Alpha Gypsum's Advantages:
There are, of course, many advantages to using alpha gypsum.
Alpha Gypsum, better known as gypsum plaster, is a homogenous substance which means that after being properly mixed it is transformed into a solid substance free of grain, soft or hard spots, or lumps.
Alpha Gypsum's paste wax is effective for home renovations or restorations.
Correctly prepared paste wax is used to restore old wood.
No less than eight industries, including those of artists and home decorators, use this versatile product’s flexible RTV silicone rubber moulds.
Alpha Gypsum is poured easily into most moulds, and we also have our own system for use with other moulds and casting.
Alpha Gypsum having low consistency and high compressive strength, often exceeding 5000 pounds per square inch
Alpha Gypsum is a common ingredient for making plaster
Alpha Gypsum is made by processing gypsum stone into a fine powder
Alpha Gypsum is well regarded for its strength
Alpha Gypsum is converted into a variety of building materials.
Gypsum-based building materials produced basically as follows:
*Satin Plaster
*Plaster of Paris
*Hand Plaster
*Spray Plaster
*Construction Plaster
*Joint Filler
*Adhesive
*Rifino
*Orthopedic
*Seramic Mould Plaster
What is the difference between alpha and beta gypsum?
Structure of beta gypsum is needle-like and amorphous while crystal structure of Alpha Gypsum is geometric.
It shows that Alpha Gypsum as compare to beta gypsum appears to be fluidized when mixed with much less water than beta gypsum and Alpha Gypsum offers high strength properties.
Alpha Gypsum is generally characterized by needle-shaped crystals which have a lower water requirement, set faster (i.e., produce calcium sulfate dihydrate faster), and produce articles of higher strength.
This method can be used for autoclaving of lump or ground gypsum.
Alpha Gypsum can be used in pottery plasters, metal casting plasters, industrial tooling plasters and casting plasters.
Alpha Gypsum has a lower water-carrying capability and is used where high strength is required.
Alpha Gypsum is used for making surfaces like the walls of a house smooth before painting them and for making ornamental designs on the ceilings of houses and other buildings.
Alpha Gypsum is also used for making toys, decorative materials, cheap ornaments, cosmetics, black-board, chalk and casts for statue.
Alpha Gypsum is a fire-proofing material.
Alpha Gypsum is used as an orthopedic cast that is used in hospitals for setting fractured bones in the right position to ensure correct healing and avoid nonunion.
Alpha Gypsum keeps the fractured bone straight.
This use is based on the fact that when Alpha Gypsum is mixed with a proper quantity of water and applied around the fractured limbs it sets into a hard mass, In this way it keeps the bone joints in a fixed position.
Alpha Gypsum is also used for making casts in dentistry
PHYSICAL PROPERTIES:
-Molecular Weight: 290.3
-Exact Mass: 289.8392057
-Monoisotopic Mass: 289.8392057
-Topological Polar Surface Area: 178 Ų
-Physical Description: White or yellowish, finely divided, odorless powder
-Color: white to yellow
-Form: crystal
-Melting Point: 163 °C
-Solubility: 0.3 %
-Density: 2.5
-Vapor Pressure: 0 mmHg
-Chemical Classes: Mineral Dusts -> Other Mineral Dusts
Alpha Gypsum can be used in metal casting plasters and industrial tooling plasters.
Alpha Gypsum has a lower water-carrying capability and is used where high strength is required.
Alpha Gypsum is used for making surfaces like the walls of a house smooth before painting them and for making ornamental designs on the ceilings of houses and other buildings.
Alpha Gypsum is poured easily into most moulds, and we also have our own system for use with other moulds and casting.
Alpha Gypsum having low consistency and high compressive strength, often exceeding 5000 pounds per square inch
Alpha Gypsum is a common ingredient for making plaster
Alpha Gypsum is suitable for high-strength plastering projects, decorative products and gypsum board.
Alpha Gypsum is a common ingredient for making plaster.
CHEMICAL PROPERTIES:
-Hydrogen Bond Donor Count: 1
-Hydrogen Bond Acceptor Count: 9
-Rotatable Bond Count: 0
-Heavy Atom Count: 13
-Formal Charge: 0
-Complexity: 62.2
-Isotope Atom Count: 0
-Defined Atom Stereocenter Count: 0
-Undefined Atom Stereocenter Count: 0
-Defined Bond Stereocenter Count: 0
-Undefined Bond Stereocenter Count: 0
-Covalently-Bonded Unit Count: 5
-Compound Is Canonicalized: Yes
Alpha Gypsum is made by processing gypsum stone into a fine powder and is well regarded for its strength and low absorptive levels.
Alpha Gypsum exists in various forms and states of hydration.
Alpha Gypsum is a mixture of powdered and heat-treated gypsum.
Alpha Gypsum is obtained by heating of gypsum stone under high pressure and Alpha Gypsum is chemically same with CaSO4.1 / 2H2O formula and beta gypsum but different from in the point of crystal structure.
Alpha Gypsum shows that Alpha Gypsum as compare to beta gypsum appears to be fluidized when mixed with much less water than beta gypsum and Alpha Gypsum offers high strength properties.
Alpha Gypsum is preferred in different industrial applications by virtue of high mechanical strength.
Alpha Gypsum appears as white or yellowish, finely divided, odorless powder consisting mostly or entirely of calcium sulfate hemihydrate, CaSO4*1/2H2O.
Alpha Gypsum forms a paste when it is mixed with water that soon hardens into a solid.
Alpha Gypsum is used in making casts, molds, and sculpture
Alpha Gypsum is a calcium salt and a hydrate.
Alpha Gypsum is made by processing gypsum stone into a fine powder
Alpha Gypsum is well regarded for its strength
Alpha Gypsum is converted into a variety of building materials.
Alpha Gypsum is also used for making toys, decorative materials, cheap ornaments, cosmetics, black-board, chalk and casts for statue.
Alpha Gypsum is a fire-proofing material.
Alpha Gypsum is used as an orthopedic cast that is used in hospitals for setting fractured bones in the right position to ensure correct healing and avoid nonunion.
Alpha Gypsum keeps the fractured bone straight.
Alpha Gypsum is also used for making casts in dentistry
Alpha Gypsum is used in baking as a dough conditioner, reducing stickiness, and as a baked-goods source of dietary calcium.[45] The primary component of mineral yeast food.[46]
Alpha Gypsum is used in mushroom cultivation to stop grains from clumping together.
Alpha Gypsum is used like concrete blocks in building construction
SYNONYMS:
Gypsum
Alpha Gypsum
Calcium sulfate hemihydrate
Plaster of paris
10034-76-1
Gypsum hemihydrate
26499-65-0
dicalcium;disulfate;hydrate
Plaster of Paris (Ca(SO4).1/2H2O)
Sulfuric acid, calcium salt, hydrate (2:2:1)
calcium sulphate hemihydrate
Crystacal
Densite
Hemihydrate gypsum
Densite (gypsum)
Gipshalbhydrat
P 23 (sulfate)
AI3-01697
2CaSO4.H2O
Calcium sulfate, hemihydrate
Plaster of Paris, total dust
calcium sulfate--water (2/1)
Plaster of Paris
Sulfuric acid, calcium salt (Plaster of Paris)
Plaster of Paris (Ca(SO4).1/2H2O) (9CI)
Sulfuric acid, calcium salt (1:1), hemihydrate
Sulfuric acid, calcium salt, hydrate (2:2:1)
calcium sulphate hemihydrate
Crystacal
Densite
Hemihydrate gypsum
Densite (gypsum)
Gipshalbhydrat
P 23 (sulfate)
AI3-01697
2CaSO4.H2O
