Calcium Sulfate (CAS 99400-01-8) Comprehensive Guide
Table of Contents
1. Product Specifications & Comparative Analysis
| Parameter | Calcium Sulfate | Typical Alternatives |
|---|---|---|
| CAS Number | 99400-01-8 | 10101-41-4 (Dihydrate) |
| Molecular Formula | CaO4S | CaSO4·2H2O |
| Molecular Weight | 136.14 g/mol | 172.17 g/mol |
| Melting Point | 1450°C | 150-160°C (dehydration) |
| Density | 2.96 g/cm³ | 2.32 g/cm³ (Dihydrate) |
2. Industrial Applications
Core Functional Uses:
- Construction Materials: Primary component in gypsum boards and fire-resistant coatings
- Food Industry: FDA-approved coagulant in tofu production (E516)
- Medical Field: Biodegradable bone void filler in orthopedics
- Agriculture: Soil conditioner for sodic soil remediation
- Industrial Desiccant: Moisture control in packaging and gas drying
3. Operational Guidelines
Material Handling Protocols:
- Store in sealed containers at <40°C with <65% RH
- Use NIOSH-approved N95 masks during powder processing
- Maintain ventilation rates ≥15 CFM in enclosed spaces
- Incompatible with strong acids and aluminum powders
4. Case Studies
Case 1: Construction Material Enhancement
Client: Fortune Construction Group (Guangzhou)
Application: Gypsum-based fireproofing system
Outcome: Achieved 120-minute fire rating compliance (ASTM E119)
Feedback: “Reduced material costs by 18% while improving UL certification performance”
Case 2: Food Production Optimization
Client: Green Valley Soy Products Co., Ltd.
Application: Tofu coagulation process
Outcome: Increased yield by 22% with consistent texture parameters
Feedback: “Met both USDA organic and EU food additive standards simultaneously”
5. Procurement Recommendations
| Grade | Purity | Packaging | Price Range |
|---|---|---|---|
| Industrial | ≥98% | 25kg PP woven bags | $0.28-$0.35/kg |
| Food | ≥99.5% | 20kg paper drums | $0.65-$0.82/kg |
| Pharma | ≥99.9% | 5kg aluminum cans | $12.5-$15.8/kg |
Certified Suppliers:
- Fortune Chemical Reagent Co., Ltd. (Tianjin)
- Wuhan Jixinyibang Biotechnology Co., Ltd.
- Shanghai Chemfish Industrial Co., Ltd.
6. Supplier Inquiry
For technical specifications sheets or bulk pricing:
Email: info@vivalr.com
Tel: (86) 15866781826
Office Hours: Mon-Fri 08:30-17:30 CST
Request quotation template includes:
1. Required quantity (kg/metric ton)
2. Application sector
3. Preferred certification (USP/EP/FCC)
4. Incoterms requirements



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