Calcium Sulfate

Description

Product Overview
Calcium Sulfate is a high-purity, inorganic coagulating and hardening agent essential for construction, food processing, and pharmaceutical applications. Its primary industrial use includes cement retardation, gypsum board manufacturing, and as a calcium fortifier in bakery products. The key value proposition is exceptional thermal stability and consistent setting behavior, reducing process variability. Strategically, it enables global buyers to maintain uninterrupted high-throughput production while lowering rework rates and compliance risk.

Key Specifications & Technical Characteristics

• Chemical composition: CaSO₄·2H₂O (Dihydrate) or CaSO₄·½H₂O (Hemihydrate)

• Purity: ≥98.5% (industrial grade) / ≥99.0% (food/pharma grade)

• Physical form: Fine white powder or granular

• Particle size: D90 ≤ 45 µm (micronized) / 0.5–2 mm (granular)

• Bulk density: 800–1,100 kg/m³ (varies by form)

• Packaging options: 25 kg multi-layer paper bags, 1 MT big bags, or bulk pneumatic tankers

• Shelf life: 24 months in dry, sealed conditions (no caking tendency below 70% RH)

Core Industrial Applications

• Construction & Cement: Set retarder for Portland cement – extends workability time by 15–20% without strength loss.

• Food & Beverage: Dough conditioner and calcium enrichment in bread, tofu, and plant-based milks – outperforms calcium carbonate with neutral taste and higher bioaccessibility.

• Pharmaceuticals: Tablet filler and disintegrant – achieves faster dissolution than lactose blends.

• Water Treatment: Reactive coagulant for phosphate removal – reduces sludge volume by up to 30% vs. alum.

• Cost advantage: Lower dosage required (5–8% less by weight) compared to competing gypsum sources.

Competitive Advantages

• Quality consistency: ISO 22000 and REACH-compliant with batch-to-batch variation <1.5% across 50+ shipments.

• Supply reliability: Three geographically dispersed production hubs (Asia, MENA, Europe) ensuring 99.6% on-time delivery.

• Logistics capability: Dedicated dry bulk fleet and export-ready packaging for sea, rail, or road.

• Price competitiveness: Direct mining and calcination ownership removes trader markups (5–7% below regional index).

• Sustainability: Zero process wastewater and 92% recycled packaging material.

• Technical support: Full SDS, CoA, and application lab access included with every contract.

Commercial & Supply Information

• Minimum order quantity (MOQ): 20 MT (bulk)

• Loading capacity: 24–26 MT per standard 20-foot dry container (palletized big bags)