Calcium Sulphate Manufacturer, Exporter and Supplier

Calcium Sulphate Overview

Calcium Sulphate is a versatile chemical widely used in pharmaceuticals, food processing, construction, and industrial applications. As a GMP & ISO 9001-certified manufacturer, Chemignition Laboratory ensures high-quality Calcium Sulphate production, meeting global regulatory standards. We supply BP and USP-grade Calcium sulphate dihydrate, making us a trusted global manufacturer and exporter.

Key Properties of Calcium Sulphate

Product Name:	Calcium Sulphate
Synonyms:	Calcium Sulphate Dihydrate
CAS No:	10101-41-4
Chemical Formula:	CaSO₄·2H₂O
Grade:	BP / USP
Appearance:	White or almost white fine powder.
Molar Mass:	172.2 g/mol
Solubility:	Very slightly soluble in water; practically insoluble in ethanol (96 per cent).
Melting Point:	1460°C (Decomposes)

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Calcium Sulphate Manufacturing process

Step 1: Raw Material Selection
High-purity calcium carbonate and sulfuric acid are selected.
Raw materials undergo strict quality checks for purity.
Step 2: Chemical Reaction & Processing
Calcium carbonate reacts with sulfuric acid to form Calcium Sulphate.
The solution is filtered and refined to remove impurities.
Step 3: Crystallization & Drying
The solution is evaporated, crystallized, and dried to achieve the required purity.
Step 4: Quality Control & Testing
The product is tested for assay, solubility, moisture content, and pH as per IP/BP/USP standards.
Step 5: Packaging & Storage
Packed in HDPE bags or fiber drums to prevent contamination.
Stored in a cool, dry place to maintain stability.

Calcium Sulphate Applications

Pharmaceutical Applications

Pharmaceutical Excipient

Suitable pharmaceutical grades of Calcium Sulphate may be used as an excipient in selected solid dosage formulations where its physical and formulation properties are appropriate.

Tablet and Capsule Formulations

Calcium Sulphate may be used as a diluent or filler in suitable tablet and capsule formulations. The selected material should comply with applicable pharmacopoeial and formulation requirements.

Calcium Source

Suitable grades may serve as a source of calcium in selected pharmaceutical and nutritional formulations where calcium supplementation is required.

Pharmaceutical Processing

Calcium Sulphate may also be used in selected pharmaceutical manufacturing processes where its calcium content or physical properties provide the required functionality.

Dental and Medical Material Applications

Dental Plaster and Stone

Specially manufactured grades of Calcium Sulphate are widely used in dentistry for preparing dental casts, models and moulds.

Dental Impression and Model Materials

Calcium Sulphate-based materials may be used in selected dental laboratory applications for reproducing oral structures and preparing working models.

Orthopaedic and Medical Materials

Medical-grade Calcium Sulphate has applications in selected orthopedic and surgical materials, including specialized bone-void filler and related medical systems. These uses require dedicated medical-grade materials and applicable regulatory approvals.

Food Applications

Calcium Fortification

Food-grade Calcium Sulphate may be used as a source of calcium in selected foods and nutritional products.

Firming and Stabilizing Agent

It may function as a firming or processing agent in suitable food applications where calcium ions provide the required formulation effect.

Tofu and Soy-Food Processing

Food-grade Calcium Sulphate is used as a coagulant in tofu production, helping convert soy milk into the required gel structure.

Bakery Applications

Suitable food-grade Calcium Sulphate may be used in selected bakery and flour-based formulations as a calcium source or processing ingredient.

Brewing Applications

Calcium Sulphate is used in brewing to modify the mineral composition of brewing water and provide calcium and sulphate ions.

Construction and Building Applications

Gypsum Products

Calcium Sulphate Dihydrate, commonly known as gypsum, is extensively used in construction materials.

Plaster of Paris

Calcium Sulphate Hemihydrate is the principal component of Plaster of Paris, which is used in plastering, molding and decorative applications.

Cement Manufacturing

Calcium Sulphate is added during cement manufacturing to help control the setting behavior of cement.

Agriculture and Soil Applications

Calcium and Sulphur Source

Agricultural-grade Calcium Sulphate may be used as a source of calcium and Sulphur, two important plant nutrients.

Soil Amendment

Gypsum is widely used as a soil amendment in appropriate agricultural conditions to improve soil properties and provide soluble calcium.

Sodic Soil Management

Agricultural gypsum may be used as part of soil-management programs for certain sodic soils, where calcium helps replace excess exchangeable sodium.

Fertilizer Applications

Suitable agricultural grades may be incorporated into fertilizer and soil-conditioning programs where calcium or Sulphur supplementation is required.

Ceramics and Mould-Making Applications

Ceramic Moulds

Plaster-based Calcium Sulphate materials are widely used for producing moulds in ceramic and sanitary ware manufacturing.

Casting Applications

Calcium Sulphate-based moulding materials may be used in casting processes where dimensional reproduction and controlled setting are important.

Chemical and Industrial Applications

Calcium and Sulphate Source

Calcium Sulphate may serve as a source of calcium and sulphate in selected chemical and industrial manufacturing processes.

Filler and Process Material

Suitable grades may be used as a filler or functional mineral in selected industrial formulations and manufactured products.

Laboratory and Research Applications

Laboratory Reagent

Suitable reagent grades of Calcium Sulphate may be used in chemical analysis, materials research and other laboratory applications.

Anhydrous Calcium Sulphate as a Drying Agent

Anhydrous Calcium Sulphate is used as a desiccant or drying agent in suitable laboratory and industrial applications because of its ability to absorb moisture.

Calcium Sulphate Specifications

Sr. No.	Test	Specification
1	Description	White or almost white fine powder.
2	Solubility	Very slightly soluble in water; practically insoluble in ethanol (96 per cent).
3	Identification by Sulphate	It gives reaction of Sulphate.
4	Identification by Calcium	It gives reaction of Calcium.
5	Acidity or Alkalinity	Complies with the prescribed test.
6	Chlorides	Not more than 300 ppm
7	Iron	Not more than 100 ppm
8	Loss on Ignition	18.00% to 22.00%
9	Assay	Not less than 98.00% to Not more than 102.00%

Sr. No.	Test	Specification
1	Description	White or almost white fine powder.
2	Solubility	Very slightly soluble in water; practically insoluble in ethanol (96 per cent).
3	Identification by Sulphate	It gives reaction of Sulphate.
4	Identification by Calcium	It gives reaction of Calcium.
5	Iron	Not more than 100 ppm
6	Loss on Ignition	19.00% to 23.00%
7	Assay	Not less than 98.00% to Not more than 101.00%

Note: Additional test to be carried out as per customer requirements.

Calcium Sulphate Packing and Storage condition

Packing:

Packed in 25 kg / 50 kg HDPE bags with inner LDPE liner for moisture protection.
Available in fiber drums or plastic drums for high-purity grades.
Bulk packaging in jumbo bags (500 kg – 1000 kg) available upon request.

Storage:

Store in a cool, dry, and well-ventilated area away from direct sunlight.

Calcium Sulphate MSDS/SDS

Download Calcium Sulphate MSDS/SDS

Why Choose Chemignition for
Calcium Sulphate Supply?

Quality Assurance

Grade Compliance

Calcium Sulphate is manufactured in adherence to stringent global pharmaceutical standards.

In-House Quality Control

Each batch undergoes rigorous testing for purity, stability, and efficacy.

Regulatory Approvals

Certified for export and compliant with international regulatory requirements.

Large-Scale Manufacturing and Export

Grade Compliance

Calcium Sulphate is manufactured in adherence to stringent global pharmaceutical standards.

In-House Quality Control

Each batch undergoes rigorous testing for purity, stability, and efficacy.

Regulatory Approvals

Certified for export and compliant with international regulatory requirements.

How to Order Calcium Sulphate

For bulk orders or more information about Calcium Sulphate, contact our sales team today:

info@chemignition.com

Phone

+91 8866558673

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FAQs related to Calcium Sulphate

What is Calcium Sulphate?

Calcium Sulphate (CaSO₄) is an inorganic compound widely used in pharmaceuticals, food processing, construction, and industrial applications due to its binding, drying, and setting properties.

What are the main applications of Calcium Sulphate?

Pharmaceuticals – Used as an excipient in tablet formulations and dental plaster.
Food & Beverages – Acts as a firming agent, stabilizer, and dough conditioner.
Construction – Key ingredient in plaster of Paris and cement.
Industrial Applications – Used in ceramics, paper manufacturing, and soil conditioning.

What quality standards does Chemignition Laboratory follow?

We manufacture Calcium Sulphate under GMP & ISO 9001 standards, ensuring high purity and compliance with BP and USP specifications.

Is Calcium Sulphate safe for pharmaceuticals and food products?

Yes, Calcium Sulphate is FDA-approved and widely used in regulated industries with specified usage limits.

What grades of Calcium Sulphate do you provide?

We offer BP and USP grades suitable for pharmaceutical, food, and industrial applications.

How should Calcium Sulphate be stored?

Store Calcium Sulphate in a cool, dry, well-ventilated area, away from moisture and incompatible substances.

Do you offer bulk or customized packaging?

Yes, we provide customized packaging solutions, including 25 kg and 50 kg HDPE bags with an inner polythene liner for moisture protection.