Destiny Chemicals

Product Name: Marine Gypsum
Chemical Formula: CaSO₄·2H₂O
CAS Number: 10101-41-4

Marine Gypsum is a by-product derived from the evaporation of seawater in salt pans, where it precipitates out during the salt extraction process. It primarily consists of calcium sulfate dihydrate (CaSO₄·2H₂O) and appears as a white to off-white powder. Marine Gypsum is widely used in industries such as cement, fertilizers, and soil conditioning, offering a cost-effective and eco-friendly alternative to natural gypsum. Due to its high purity and abundance in coastal regions, it plays a key role in agriculture and construction sectors.

Applications of Marine Gypsum

Marine gypsum has a variety of uses in industrial, agricultural, and construction sectors:

1. Cement Industry

• Used as a set retarder in cement manufacturing.

• Acts similar to natural gypsum, controlling the setting time of cement.

2. Fertilizer and Soil Conditioner

• Marine gypsum provides calcium and sulfur, essential nutrients for crops.

• It is used to reclaim sodic (alkali) soils, improving soil structure and permeability.

3. Plaster and Construction

• Used in making Plaster of Paris, drywall (gypsum board), and ceiling tiles.

• Suitable for lightweight construction materials.

4. Chemical Industry

• Used in manufacturing ammonium sulfate, sulfuric acid, and other chemicals.

5. Agriculture

• Corrects soil pH, removes excess sodium from saline soils, and enhances soil fertility.

✅ Advantages of Marine Gypsum

• Eco-Friendly: Utilizes waste bittern from salt industries.

• Cost-Effective: Cheaper alternative to natural gypsum.

• Abundant Supply: Available in coastal areas in large quantities.

• High Purity: When processed properly, it can meet industry-grade standards.

⚠️ Challenges and Limitations

• May contain impurities like salt and sand, requiring washing and processing.

• Moisture content can be high in raw form.

• Storage and handling require care to prevent contamination.

• Needs standardization and quality checks before industrial use.

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