1. Key Characteristics and PropertiesHigh boiling aromatic hydrocarbon solvents (boiling point
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High boiling aromatic hydrocarbon solvents (boiling point >200°C) are widely used in industrial applications due to their excellent solvency and thermal stability.
Property | Typical Range | Test Method | Significance |
---|---|---|---|
Boiling Point | 200-300°C | ASTM D86 | Determines evaporation rate |
Point d'éclair | 100-150°C | ASTM D93 | Safety handling consideration |
Density (20°C) | 0.95-1.05 g/cm³ | ASTM D4052 | Affects formulation calculations |
Viscosity (25°C) | 2-15 cP | ASTM D445 | Impacts flow characteristics |
Aromatic Content | ≥98% | ASTM D2360 | Solvency power indicator |
Sulfur Content | ≤ 10 ppm | ASTM D5454 | Environmental compliance |
These solvents serve critical functions across multiple industries:
Industry | Application | Benefits | Typical Formulations |
---|---|---|---|
Coatings | High-bake enamels | Excellent flow and leveling | 15-25% of total formulation |
Adhesives | Hot-melt adhesives | Enhanced thermal stability | 5-15% of resin system |
Electronics | PCB cleaning | Effective flux removal | 80-100% pure solvent |
Rubber | Tire cord adhesives | Improved rubber-to-metal bonding | 10-20% of adhesive system |
Printing Inks | Gravure inks | Good pigment wetting | 20-40% of ink vehicle |
Proper handling ensures safe use of these solvents:
Aspect | Requirement | Protection Measures | Emergency Procedures |
---|---|---|---|
Storage | Steel drums (N2 blanket) | Grounding of containers | Foam extinguishers for fire |
Personal Protection | Chemical goggles | Respirator (organic vapor) | Eye wash station available |
Ventilation | LEV system required | Explosion-proof equipment | Vapor detector alarms |
Spill Management | Secondary containment | Absorbent materials ready | Evacuate area for large spills |
Waste Disposal | Hazardous waste classification | Licensed disposal contractor | Never pour into drains |
For high-temperature applications: Select solvents with boiling points >250°C
In enclosed spaces: Implement vapor concentration monitoring
When replacing other solvents: Conduct compatibility testing
For environmental compliance: Verify local VOC regulations
These solvents offer superior performance for demanding applications when selected and handled appropriately. Their high solvency power and thermal stability make them indispensable in many industrial processes.
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