Sulfur
Vulcanization Crosslinking
Polymer Additives

Sulfur

High-purity Sulfur designed for efficient vulcanization and crosslinking applications in polymer systems. Our premium sulfur delivers excellent curing efficiency, superior mechanical property enhancement, and outstanding processing characteristics for rubber modification and polymer crosslinking processes.

  • Excellent Vulcanization Efficiency
  • Superior Crosslinking Performance
  • Outstanding Mechanical Enhancement
  • Excellent Processing Characteristics
  • High Purity Grade
  • Cost-effective Solution
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Technical Specifications

Chemical Formula: S₈ (Elemental Sulfur)
CAS Number: 7704-34-9
Atomic Weight: 32.07 g/mol
Physical State: Yellow crystalline solid
Purity: ≥ 99.5%
Melting Point: 112.8°C
Boiling Point: 444.6°C
Density: 2.07 g/cm³ (20°C)
Particle Size: 100-325 mesh (customizable)
Ash Content: ≤ 0.03%
Acidity (as H₂SO₄): ≤ 0.003%
Processing Temperature: 120-160°C (vulcanization)
Recommended Loading: 1-5% by weight
Storage Stability: Indefinite (dry conditions)
Packaging: 25kg kraft paper bags with PE liner

Applications

Rubber Vulcanization
Crosslinking Agent
Tire Manufacturing
Industrial Rubber
Household Rubber Products
Chemical Processing
Polymer Modification
Industrial Applications
Mechanical Goods
Protective Products
Sealing Applications
Agricultural Products

Industry-Specific Grades

DRAVYOM offers specialized Sulfur grades tailored for specific vulcanization and crosslinking requirements, ensuring optimal curing performance across diverse rubber applications.

Tire Grade
Purity: ≥ 99.8% Particle Size: 100-200 mesh Ash: ≤ 0.02% Application: Tire manufacturing
Industrial Grade
Purity: ≥ 99.5% Particle Size: 150-325 mesh Acidity: ≤ 0.005% Application: General rubber goods
Chemical Grade
Purity: ≥ 99.9% Heavy Metals: ≤ 5 ppm Moisture: ≤ 0.1% Application: Chemical synthesis
Agricultural Grade
Purity: ≥ 99.0% Particle Size: 200-400 mesh Organic Matter: ≤ 0.1% Application: Soil amendment

Quality Standards

DRAVYOM's Sulfur is manufactured under stringent quality control protocols, meeting international standards including ASTM and ISO specifications for vulcanization and chemical applications.

ISO 9001:2015 Certified Manufacturing
ASTM D4570 Compliance
≥99.5% High Purity
Advanced Analytical Testing
Consistent Vulcanization Performance
Batch-to-Batch Uniformity
Complete Chemical Analysis
Moisture-Protected Storage

Advanced Chemical Properties & Performance

Sulfur exhibits exceptional vulcanization and crosslinking properties essential for rubber and polymer curing applications. Its elemental structure and controlled reactivity ensure reliable chemical bonding, superior curing performance, and excellent mechanical property enhancement in demanding elastomeric applications.

Chemical Structure
Element: Sulfur (S)
Atomic Number: 16
Allotropic Form: Rhombic sulfur (S8)
Purity Level: ≥99.5% elemental
Thermal Properties
Melting Point: 115-119°C
Vulcanization Temperature: 140-180°C range
Activation Energy: Low for crosslinking
Thermal Stability: Stable up to processing temps
Vulcanization Properties
Primary Function: Crosslinking agent
Bond Formation: Sulfur-sulfur bridges
Cure Rate: Moderate to fast
Network Density: Adjustable via loading
Mechanical Enhancement
Tensile Strength: Significant increase
Elasticity: Enhanced recovery
Hardness: Controlled improvement
Durability: Extended service life
Processing Characteristics
Loading Level: 0.5-3.0% typical
Accelerator Compatibility: Excellent with most systems
Dispersion: Good in rubber matrix
Scorch Safety: Good processing window

Performance Characteristics

Detailed performance metrics demonstrate sulfur effectiveness in vulcanization with exceptional crosslinking efficiency, superior mechanical property enhancement, and excellent processing reliability across demanding elastomeric applications.

Crosslinking Efficiency

Performance: High degree of cure

Superior network formation
Mechanical Properties

Enhancement: Tensile and elasticity

Optimized performance
Cost Effectiveness

Loading: Low 0.5-3.0%

Economic vulcanizing agent
Process Temperature

Range: 140-180°C optimal

Practical curing conditions
Compatibility

Scope: Multiple rubber types

Versatile applications
Cure Control

Benefit: Predictable kinetics

Reliable processing

Safety Information

Sulfur is generally safe but requires proper handling to avoid dust inhalation and skin contact. Use appropriate personal protective equipment including respiratory protection and gloves. Ensure adequate ventilation during processing. May form hydrogen sulfide at high temperatures. Handle with standard chemical safety procedures.

Dust Protection Required
Generally Safe Material
High Temperature Caution

Storage & Handling

Store sulfur in cool, dry conditions away from heat sources and incompatible materials. Keep containers tightly sealed to prevent moisture absorption and contamination. Use well-ventilated storage areas. Protect from oxidizing agents and organic materials.

Cool storage temperatures
Moisture protection essential
Good ventilation required
Chemical compatibility check

Chemical Mechanisms & Reaction Pathways

Sulfur functions through vulcanization and crosslinking mechanisms, providing polymer enhancement via sulfur bridge formation, radical chain reactions, and thermochemical curing to achieve superior mechanical properties and durability.

Sulfur Bridge Formation

Creates intermolecular crosslinks between polymer chains

Primary vulcanization mechanism
Radical Crosslinking

Initiates radical chain reactions forming durable bonds

Enhanced mechanical properties
Thermal Activation

Temperature-controlled curing process optimization

Precise processing control
Network Formation

Develops three-dimensional polymer networks

Superior elastomeric properties

Regulatory Compliance & Documentation

Comprehensive regulatory compliance ensures global market access with complete documentation packages supporting international standards and sulfur safety requirements for vulcanization applications.

Industrial Standards

Meets vulcanizing agent and processing requirements

EU Regulations

REACH compliant for industrial rubber applications

Safety Testing

Complete toxicology and handling safety data

Global Standards

International vulcanizing agent approvals

Rubber Testing

Complete vulcanization and mechanical property data

SDS Available

Multi-language Safety Data Sheets (GHS compliant)

Technical Support & Value-Added Services

DRAVYOM's vulcanization technology team provides comprehensive technical support, formulation assistance, and application services to optimize sulfur performance in your specific crosslinking and elastomer applications.

Vulcanization Optimization
  • Cure system design and optimization
  • Crosslink density evaluation
  • Processing condition optimization
  • Custom vulcanization formulations
Testing Services
  • Cure rate and kinetics analysis
  • Mechanical property testing
  • Thermal analysis and stability
  • Crosslink characterization
Technical Support
  • Processing troubleshooting
  • Cure optimization guidance
  • Material selection assistance
  • Training programs
Supply Solutions
  • Multiple sulfur grades and forms
  • Controlled storage conditions
  • Quality consistency programs
  • Global distribution

Environmental Impact & Sustainability

Our sulfur production emphasizes environmental responsibility through natural element sourcing, efficient processing, and comprehensive environmental impact management for vulcanization applications.

Natural Element

Elemental sulfur from natural and industrial sources

Low Environmental Impact

Minimal processing requirements and waste generation

Efficient Processing

Energy-efficient purification and handling

Durable Products

Long-lasting vulcanized products reducing replacement

ISO 14001

Environmental management system certified production

Recyclable Networks

Devulcanization technologies for material recovery

Manufacturing Excellence & Quality Control

DRAVYOM's state-of-the-art sulfur processing facility employs advanced purification technology and continuous monitoring systems to ensure consistent vulcanization performance across all production batches.

Purification Process

Advanced purification with precise sulfur properties

Consistent vulcanization activity and purity
Quality Testing

Comprehensive analysis including vulcanization testing

Performance validation and purity verification
Quality Systems

ISO 9001:2015 quality management with vulcanizing testing

Continuous improvement and performance optimization
Packaging Control

Controlled atmosphere packaging preventing oxidation

Activity preservation and stability maintenance

Market Applications & Performance Data

Comprehensive vulcanization data demonstrating sulfur effectiveness across diverse applications with quantified crosslinking metrics and validated mechanical property benefits.

Automotive Rubber
Performance: Excellent heat and aging resistance Durability: Superior mechanical properties and longevity Processing: Efficient vulcanization and quality control
Industrial Applications
Function: Reliable vulcanizing agent for various elastomers Performance: Consistent crosslinking and property development Economics: Cost-effective solution with predictable results
Consumer Products
Quality: Superior elastomeric properties and comfort Processing: Excellent vulcanization control and efficiency Safety: Long-established safety profile for consumer use

DRAVYOM Competitive Advantages

Superior Vulcanization Performance

High-purity sulfur with exceptional crosslinking efficiency and consistent vulcanization characteristics

Reliable Supply

Guaranteed availability with controlled storage and consistent sulfur production

Technical Expertise

Dedicated vulcanization team provides cure optimization and processing support

Quality Assurance

Comprehensive testing with vulcanization validation and mechanical property documentation

Global Standards

International compliance with REACH and vulcanizing agent standards

Partnership Approach

Collaborative relationships with rubber formulators and custom vulcanization development