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Industrial-Grade Calcium Sulf

High-Purity CaSO₄ for Construction, Chemical Processing, Fillers & Industrial Applications

Industrial-Grade Calcium Sulf

Functionality: Terafon® Industrial Ammonium Sulfate supplies nitrogen and sulfur for fertilizers, chemicals, textiles, and water-treatment use.

Form: Free-flowing crystals for easy handling and processing.

Appearance: White, uniform, low-dust crystalline material.

Solubility / Readiness: Dissolves quickly in water for smooth industrial application.

Industrial Calcium Sulf Detailed Specifications

Industrial-Grade Calcium Sulfate is a highly stable inorganic compound available in dihydrate (gypsum), hemihydrate (plaster-grade), and anhydrite (anhydrous) forms. With consistent mineral purity, controlled particle distribution, and excellent structural stability, it is widely used in cement and building materials, fertilizer production, chemical processing, soil improvement, water treatment, and industrial fillers.
Its predictable hydration/dehydration behavior and low impurities make it an essential material across multiple industrial sectors.

Technical Specifications

Item Specification
Chemical Name Calcium Sulfate
Forms Dihydrate (CaSO₄·2H₂O), Hemihydrate (CaSO₄·0.5H₂O), Anhydrite (CaSO₄)
Purity 95–98% (Technical Grade), up to ≥99% (Refined Grade)
Appearance White / off-white crystalline powder or granules
Moisture < 1.0% (Anhydrite / Hemihydrate); structural water for dihydrate
pH (10% suspension) Neutral to slightly alkaline
Bulk Density 0.8–1.1 g/cm³ (varies with form & particle size)
Solubility Slightly soluble in water; solubility decreases with temperature
CAS Numbers 7778-18-9 / 10101-41-4 / 10034-76-1
HS Code 252020
Note:Values may vary according to product grade and production method; COA available upon request.

Key Functions & Industrial Benefits

  • Controlled Hydration Properties
    Stable crystalline structure suitable for cement set control, plaster systems, cast materials, and industrial binders.
  • High Purity Mineral Source
    Low insolubles and stable Ca/S ratio ensure consistent downstream performance in chemicals, fillers, and fertilizer blends.
  • Structural & Processing Stability
    Excellent thermal stability, low reactivity (anhydrite), and predictable setting behavior ensure reliable industrial output.
  • Soil & Agricultural Benefits
    Provides available calcium and sulfur, improves soil structure, reduces sodicity, enhances water infiltration.
  • Cost-Effective & Widely Applicable
    Abundant mineral source, simple storage conditions, suitable for high-volume industrial consumption.

Product Grades Available

1. Calcium Sulfate Dihydrate (Gypsum)

  • High consistency for cement retarders
  • Used in agriculture & soil conditioning
  • Suitable for gypsum board and general building materials

2. Calcium Sulfate Hemihydrate (Plaster-Grade)

  • Fast and controlled setting performance
  • Suitable for molding, casting, finishing plaster, specialty construction materials

3. Anhydrous Calcium Sulfate (Anhydrite)

  • Low moisture, highly stable, low reactivity
  • Used in industrial fillers, desiccant blends, and chemical processing

Industrial Applications

Construction & Building Materials

  • Cement set regulator
  • Plaster, stucco, drywall manufacturing
  • Self-leveling compounds, grouts, cast building materials

Chemical Manufacturing

  • Filler, carrier, flow aid
  • Intermediate for sulfates and calcium salts
  • Catalyst support and process mineral additive

Agriculture & Soil Improvement

  • Neutralizes sodic soils
  • Improves structure, increases Ca & S availability
  • Reduces soil compaction & enhances infiltration

Industrial Fillers & Plastics

  • In plastics, rubber, and resin systems
  • Improves dimensional stability & mechanical properties

Water Treatment

  • Coagulation aid
  • pH buffering
  • Mineral additive in multi-component treatment systems

Desiccants & Specialty Uses

  • Anhydrous CaSO₄ as drying agent
  • Ceramic, glass, and mold applications

Packaging, Transport & Storage

  • Packaging Options: 25 kg bags / 40 kg bags / 50 kg bags
    500–1000 kg jumbo bags
    Bulk delivery upon request
  • Storage Conditions: Store in a dry, ventilated, moisture-free environment.
    Hemihydrate and anhydrite must avoid prolonged humidity exposure to prevent rehydration or caking.
  • Shelf Life: 12–24 months if stored correctly.

Why Choose Terafon® Industrial Calcium Sulfate

Consistent Industrial-Grade Quality
Terafon® ensures stable purity, controlled moisture levels, and uniform particle size—ideal for high-precision construction, chemical, and manufacturing processes.

Reliable Supply & Global Logistics
With advanced production capacity and international distribution experience, Terafon® guarantees steady supply, on-time delivery, and dependable support for global industrial clients.

Application-Focused Technical Expertise
Our team provides guidance tailored to cement, fillers, coatings, plastics, soil conditioning, and chemical processing—helping customers achieve optimal performance in every application.

Strict Quality Control & Compliance
Every batch is tested against industrial standards for purity, whiteness, solubility, and particle consistency, ensuring predictable results and long-term reliability.

Partner-Oriented Service
From customized specifications to flexible packaging and technical assistance, Terafon® supports manufacturers with solutions designed to enhance productivity and reduce operational risks.







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    High-Purity Calcium Sulfate for Industry

    Terafon® Industrial Calcium Sulfate provides stable CaSO₄ purity for construction materials, chemical processing, plastics, coatings, and industrial filler applications.

    Reliable Performance & Easy Processing

    Uniform crystalline particles offer steady flow, low moisture, and clean dispersion, ensuring smooth blending, consistent reactions, and dependable performance in production.

    Consistent Quality & Controlled Purity

    Produced under strict industrial standards, Terafon® calcium sulfate maintains stable composition, low impurities, and reliable batch uniformity for precise manufacturing needs.

    Trusted Across Industrial Applications

    Preferred by manufacturers worldwide, Terafon® calcium sulfate supports efficient processing, consistent product quality, and long-term operational reliability in diverse industries.

    Optimize Your Industrial Processes with Terafon

    Contact us today to learn how Terafon® Industrial Calcium Sulfate delivers high-purity CaSO₄ for construction materials, chemical processing, plastics, coatings, and industrial filler applications—ensuring stable performance, consistent results, and efficient production across diverse industrial operations.