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Calcium Sulfate

Calcium Sulfate

Classification: Calcium Salt

CAS NO.:10101-41-4/7778-18-9

Molecular Formula: CaSO₄・2H₂O / CaSO₄


Details

  Product Characteristics:

  Calcium sulfate is usually a white crystalline powder or colorless crystal,  odorless and tasteless, with diverse crystal forms, commonly including  orthorhombic system and monoclinic system. Naturally occurring calcium sulfate  is gypsum (dihydrate), which can form calcium sulfate hemihydrate (plaster of  Paris) or anhydrous calcium sulfate after heating and dehydration. It is  slightly soluble in water, insoluble in ethanol, and soluble in acids and  ammonium salt solutions. It is stable under normal temperature and pressure and  does not react with components in the air, but may react with reducing agents  (such as carbon) at high temperatures. Its aqueous solution is neutral and  belongs to a strong acid-strong base salt.

  Technical Data(Executive Standard :GB1886.6-2016)

Test Items

Test Standard

Appearance

White Powder

ContentCaSO4 dry basis  )

≥98%

Pb

≤2ppm

As

≤2ppm

Fluoride

Dihydrate:≤0.003%

Anhydrous:≤0.005%

Selenium

≤0.003%

Loss  on Drying

Dihydrate:19.0~23.0%

Anhydrous:≤1.5%

Total  Plate Count

≤1000cfu/g

Total  Yeast&Mold

≤100cfu/g

Staphylococcus  aureus

Negative

Salmonella

Negative

Escherichia  Coli

Negative

  Applications:

  Agricultural Field

  1.Soil amendment: Used to improve soil structure, adjust soil pH  (especially suitable for alkaline soils), enhance soil aeration and water  retention, while providing calcium and sulfur elements for plants.

  2.Chemical fertilizer additive: As a supplementary source of sulfur and  calcium, it is added to compound fertilizers to meet the growth needs of  crops.

  3.Feed additive: Adding a small amount of calcium sulfate to animal feed  can supplement calcium and sulfur, promoting the growth and development of  livestock and poultry.

  Food Field

  1.Used as a coagulant in the production of soy products (such as tofu) and  dairy products (such as cheese) to coagulate and shape proteins.

  2.Serves as a dough conditioner to improve the processing performance of  flour and the texture of food products.

  3.Acts as a nutritional fortifier to supplement calcium in food.

  4.Used as a water treatment agent in beer brewing to adjust water  hardness.

  Pharmaceutical Field

  1.Medical gypsum: Gypsum bandages made by mixing plaster of Paris with  water are used for fracture fixation and wound dressing, featuring fast setting  and high strength.

  2. Pharmaceutical excipient: As a diluent or disintegrant for tablets and  capsules, it helps with drug formation and release.

  Packaging and Storage

  This product is packaged in PP bags, 25kg per bag, and can also be  customized according to user requirements. It should be sealed and stored in a  cool, dry place away from light, with a shelf life of twenty-four months.

  Safety Protection

  This product should be kept away from contact with eyes, skin, or clothing.  In case of splashing onto the body, immediately rinse with plenty of water.


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