What Is Solvent Green 7 and How Is It Used in Industrial Coloring Applications?

Introduction

Solvent Green 7 is an oil-soluble dye primarily used for coloring plastics, oils, waxes, and fuels. Known for its strong tinting strength and stability, it provides vibrant green hues in non-polar systems. Its high solubility in organic media and excellent heat resistance make it suitable for industrial and commercial uses.

Product Information

• Name: Solvent Green 7

• Chemical Formula: C28H22N2O2

• CAS Number: 6358-69-6

• Appearance: Dark green powder

• Solubility: Soluble in organic solvents, oils, and hydrocarbons; insoluble in water

• Heat Stability: High, suitable for plastic and fuel applications

Key Features

• Brilliant green hue with high color intensity

• Excellent solvent and oil solubility

• Superior heat stability for industrial processing

• Non-water-soluble, ideal for oil-based systems

• Compatible with a wide range of polymers and organic media

Applications

Solvent Green 7 dissolves in organic phases, imparting a strong green coloration without affecting the chemical or physical stability of the substrate. Its high thermal resistance ensures color retention during high-temperature processing.

Advantages

• Intense and bright green shade

• High thermal and light stability

• Excellent dispersibility in organic media

• Non-bleeding in oils and waxes

Limitations

• Insoluble in water, unsuitable for aqueous systems

• Requires careful handling to avoid staining

• Limited use in food or pharmaceutical applications (non-food grade)

FAQs

Q: Is Solvent Green 7 safe for cosmetic or food use?
A: No, it is intended for industrial use only and not approved for food or cosmetic applications.

Q: Can it be used in transparent plastics?
A: Yes, it is suitable for transparent and translucent plastic products due to its solubility and brilliance.

Q: What makes it ideal for fuel coloration?
A: Its solubility in hydrocarbons and strong green color makes it effective for fuel identification and branding.

Conclusion

Solvent Green 7 is a versatile, oil-soluble dye widely used in plastics, fuels, and organic media. Its high heat resistance, vivid coloration, and stability in non-polar systems make it a preferred industrial colorant.