China Supplier Refined Naphthalene Good Price-AMANDA INTERNATIONAL PRIVATE LIMITED

1.Introduction

Refined naphthalene (C₁₀H₈) is a high-purity crystalline aromatic hydrocarbon derived primarily from coal tar distillation. With its distinctive white flake/powder form and characteristic odor, this versatile chemical serves as a crucial building block in numerous industrial applications. The global market for refined naphthalene continues to demonstrate steady growth,

2.Key Specifications

Refined Naphthalene (Top Quality Goods)
NO.	Item	Result
1	Appearance	White
2	Crystallization Point	79.88
3	Ash Content	0.006
4	Non-volatile Matter Content	0.01
5	Color Number of Acid Washing Color Comparison	2
6	Naphthalene Content	99.45

3.Manufacturing Process

The production of refined naphthalene involves sophisticated processing stages:

3.1 Raw Material Preparation**

Coal tar feedstock undergoes preliminary treatment to remove particulate matter and water content. Advanced filtration systems ensure optimal input quality.

3.2 Primary Distillation**

Fractional distillation occurs in temperature-controlled columns (200-220°C range) to separate naphthalene from other coal tar components like creosote and anthracene.

3.3 Crystallization & Purification**

The distilled product undergoes controlled crystallization (0.5-1°C/min cooling rate) followed by centrifugal separation to achieve desired purity levels.

3.4 Final Processing**

The crystallized product is dried (60-80°C) and packaged under inert atmosphere to prevent oxidation and moisture absorption.

4. Industrial Applications

4.1 Chemical Intermediate**

- Phthalic anhydride production (70% of global consumption)

- Dye and pigment manufacturing

- Surfactant synthesis (alkyl naphthalene sulfonates)

4.2 Specialty Applications**

- Rubber antioxidants (TMQ production)

- Pharmaceutical intermediates (sulfonamide drugs)

- High-performance concrete plasticizers

5. Safety & Handling Protocols

Proper safety measures are essential due to naphthalene's:

- Flammability (Flash point: 79°C)

- Sublimation characteristics

- Potential health effects (hemolytic anemia risk)

Storage Requirements:**

- Maintain below 30°C in sealed containers

- Use explosion-proof electrical equipment

- Implement proper ventilation systems

6. Environmental Considerations

Considerations**

Modern production facilities must comply with:

- Wastewater treatment (COD ≤100mg/L)

- VOC emission controls (≤50mg/m³)

- REACH and EPA regulatory standards

- Closed-loop recycling systems for byproducts